(a)Typical Readers

Market Basket Analysis has a methodological bias. Since it looks for overlapping reading--for similarties--that's what it tends to find. But, because it is biased, it hides the differences between readers' habits.

In this analysis, we ask several related questions intended to determine how well or poorly readers fit into the patterns suggested by out market basket analysis. First, we ask, "what authors were read by at least 40% of a demographic segment of readers?" Then, we look at readers, asking of each, "how many of the commonly read authors were read by this particular reader?" The second question leads to three bits of information: 1) readers who read at least one book by all of the commonly read authors; 2) readers who didn't read any books by those authors; 3) the percentages of readers who read various percentages of the commonly read authors?

It may be interesting to note that when we run this analyses for titles, instead of authors, the readers look far more different. In fact, at the level of titles, it's much harder to find any commonalities at all. In other words, although a demographic group may tend to read the same authors, they likely read different books by those authors. Is this because reading behavior was, at some level, not patterned? Is was it simply not possible for them to read the same books, since books by these authors were always out of the library?


Women 14 years old and younger

Commonly read authors

Carey, Rosa Nouchette
90 readers (51%)

Coolidge, Susan
119 readers (68%)

Zangwill, Louis
73 readers (41%)

Roe, Edward Payson
87 readers (50%)

Alden, Isabella Macdonald
101 readers (58%)

Burnett, Frances Hodgson
109 readers (62%)

Alger, Horatio
113 readers (64%)

Finley, Martha
133 readers (76%)

Alcott, Louisa May
138 readers (79%)

Sidney, Margaret
95 readers (54%)

Meade, L T
132 readers (75%)

(a)Typical readers

212 Nellie Perkins
read ALL of the common authors

213 Ida Phillips
read ALL of the common authors

3201 Arlie Tieche
read ALL of the common authors

3217 Mary Craig
read ALL of the common authors

3220 Ruth Winters
read ALL of the common authors

3804 Nellie Mitchell
read ALL of the common authors

3912 Anna Hamilton
read ALL of the common authors

558 Gertie Foorman
read ALL of the common authors

581 Sara Wysor
read ALL of the common authors

663 Ethel Starr
read ALL of the common authors

699 Edith Wilson
read ALL of the common authors

990 Gertrude Batey
read ALL of the common authors



174 readers
392 authors

(a)Typicalness

3 readers (1%)
read 9% of the commonly read authors

5 readers (2%)
read 18% of the commonly read authors

8 readers (4%)
read 27% of the commonly read authors

15 readers (8%)
read 36% of the commonly read authors

15 readers (8%)
read 45% of the commonly read authors

30 readers (17%)
read 54% of the commonly read authors

28 readers (16%)
read 63% of the commonly read authors

26 readers (14%)
read 72% of the commonly read authors

18 readers (10%)
read 81% of the commonly read authors

14 readers (8%)
read 90% of the commonly read authors

12 readers (6%)
read 100% of the commonly read authors




Women 15 to 19 years old

Commonly read authors

Carey, Rosa Nouchette
140 readers (57%)

John, Eugenie
119 readers (48%)

Coolidge, Susan
112 readers (45%)

Alger, Horatio
125 readers (51%)

Roe, Edward Payson
146 readers (59%)

Alden, Isabella Macdonald
109 readers (44%)

Burnham, Clara Louise
107 readers (43%)

Burnett, Frances Hodgson
134 readers (54%)

Finley, Martha
136 readers (55%)

Alcott, Louisa May
146 readers (59%)

Meade, L T
142 readers (58%)

(a)Typical readers

212 Nellie Perkins
read ALL of the common authors

213 Ida Phillips
read ALL of the common authors

3209 Mabel Stewart
read ALL of the common authors

3217 Mary Craig
read ALL of the common authors

3220 Ruth Winters
read ALL of the common authors

3804 Nellie Mitchell
read ALL of the common authors

3964 Bessie Budd
read ALL of the common authors

4455 Clara Smith
read NONE of the common authors

581 Sara Wysor
read ALL of the common authors

663 Ethel Starr
read ALL of the common authors

699 Edith Wilson
read ALL of the common authors

993 Ohle Gill
read ALL of the common authors



244 readers
460 authors

(a)Typicalness

1 readers (0%)
read 0% of the commonly read authors

11 readers (4%)
read 9% of the commonly read authors

22 readers (9%)
read 18% of the commonly read authors

16 readers (6%)
read 27% of the commonly read authors

31 readers (12%)
read 36% of the commonly read authors

33 readers (13%)
read 45% of the commonly read authors

38 readers (15%)
read 54% of the commonly read authors

23 readers (9%)
read 63% of the commonly read authors

25 readers (10%)
read 72% of the commonly read authors

16 readers (6%)
read 81% of the commonly read authors

17 readers (6%)
read 90% of the commonly read authors

11 readers (4%)
read 100% of the commonly read authors




Women 20 to 29

Commonly read authors

Carey, Rosa Nouchette
122 readers (57%)

John, Eugenie
107 readers (50%)

Corelli, Marie
95 readers (44%)

Roe, Edward Payson
119 readers (55%)

Burnham, Clara Louise
105 readers (49%)

Evans, Augusta J
103 readers (48%)

Burnett, Frances Hodgson
96 readers (45%)

Crawford, F Marion
123 readers (57%)

Barr, Amelia Edith Huddleston
91 readers (42%)

(a)Typical readers

1016 Edna Beard
read NONE of the common authors

1049 Maude Sheller
read ALL of the common authors

1051 Edna Hoover
read ALL of the common authors

1709 Belle Lockwood
read NONE of the common authors

1835 D. P. Campbell
read NONE of the common authors

1940 T L Zook
read NONE of the common authors

2116 John W Wilson
read NONE of the common authors

229 Coreta Shuman
read NONE of the common authors

2293 J B Ogle
read NONE of the common authors

244 Mae Thomas
read ALL of the common authors

3209 Mabel Stewart
read ALL of the common authors

3304 Nora Marlow
read NONE of the common authors

4147 Fred Klein
read ALL of the common authors

4378 Bertha Williams
read ALL of the common authors

4675 Bessie Williams
read NONE of the common authors

533 Ella Carey
read ALL of the common authors

5646 Edith E Kirby
read NONE of the common authors

651 Dora Mitchell
read ALL of the common authors

993 Ohle Gill
read ALL of the common authors



213 readers
455 authors

(a)Typicalness

10 readers (4%)
read 0% of the commonly read authors

15 readers (7%)
read 11% of the commonly read authors

25 readers (11%)
read 22% of the commonly read authors

29 readers (13%)
read 33% of the commonly read authors

31 readers (14%)
read 44% of the commonly read authors

24 readers (11%)
read 55% of the commonly read authors

25 readers (11%)
read 66% of the commonly read authors

26 readers (12%)
read 77% of the commonly read authors

19 readers (8%)
read 88% of the commonly read authors

9 readers (4%)
read 100% of the commonly read authors




Women 30 to 39

Commonly read authors

Carey, Rosa Nouchette
75 readers (53%)

John, Eugenie
71 readers (50%)

Corelli, Marie
62 readers (43%)

Roe, Edward Payson
64 readers (45%)

Burnham, Clara Louise
67 readers (47%)

Burnett, Frances Hodgson
72 readers (51%)

Crawford, F Marion
75 readers (53%)

King, Charles
60 readers (42%)

(a)Typical readers

1050 E Williams
read ALL of the common authors

1709 Belle Lockwood
read NONE of the common authors

1835 D. P. Campbell
read NONE of the common authors

1940 T L Zook
read NONE of the common authors

2116 John W Wilson
read NONE of the common authors

2293 J B Ogle
read NONE of the common authors

268 Kate A Souder
read ALL of the common authors

3887 May Keller
read NONE of the common authors

3974 C. M. Carter
read NONE of the common authors

4176 T. J. McLean
read NONE of the common authors

5785 Emma Walling
read NONE of the common authors

651 Dora Mitchell
read ALL of the common authors

667 Maggie Ward
read ALL of the common authors

673 Alice Monroe
read ALL of the common authors

683 R. E. Hamilton
read ALL of the common authors

839 Mabel Hagadorn
read ALL of the common authors

961 Ola Emerson
read ALL of the common authors

997 Emma Moles
read ALL of the common authors



141 readers
456 authors

(a)Typicalness

9 readers (6%)
read 0% of the commonly read authors

13 readers (9%)
read 12% of the commonly read authors

13 readers (9%)
read 25% of the commonly read authors

27 readers (19%)
read 37% of the commonly read authors

26 readers (18%)
read 50% of the commonly read authors

22 readers (15%)
read 62% of the commonly read authors

14 readers (9%)
read 75% of the commonly read authors

8 readers (5%)
read 87% of the commonly read authors

9 readers (6%)
read 100% of the commonly read authors




Women 40 to 49

Commonly read authors

Carey, Rosa Nouchette
48 readers (53%)

John, Eugenie
46 readers (51%)

Crockett, S R
42 readers (46%)

Corelli, Marie
40 readers (44%)

Roe, Edward Payson
37 readers (41%)

Burnham, Clara Louise
42 readers (46%)

Alexander, Mrs
42 readers (46%)

Burnett, Frances Hodgson
42 readers (46%)

Hawkins, Anthony Hope
37 readers (41%)

Crawford, F Marion
48 readers (53%)

Merriman, Henry Seton
37 readers (41%)

King, Charles
37 readers (41%)

Barrie, J M
38 readers (42%)

Freeman, Mary Eleanor Wilkins
37 readers (41%)

(a)Typical readers

6000 L. L. Ball
read NONE of the common authors

962 Louisa Koerner
read NONE of the common authors

995 R. C. Hemingray
read ALL of the common authors



90 readers
440 authors

(a)Typicalness

2 readers (2%)
read 0% of the commonly read authors

3 readers (3%)
read 7% of the commonly read authors

8 readers (8%)
read 14% of the commonly read authors

9 readers (10%)
read 21% of the commonly read authors

8 readers (8%)
read 28% of the commonly read authors

5 readers (5%)
read 35% of the commonly read authors

11 readers (12%)
read 42% of the commonly read authors

13 readers (14%)
read 50% of the commonly read authors

7 readers (7%)
read 57% of the commonly read authors

8 readers (8%)
read 64% of the commonly read authors

4 readers (4%)
read 71% of the commonly read authors

5 readers (5%)
read 78% of the commonly read authors

2 readers (2%)
read 85% of the commonly read authors

4 readers (4%)
read 92% of the commonly read authors

1 readers (1%)
read 100% of the commonly read authors




Women 50 and older

Commonly read authors

Carey, Rosa Nouchette
27 readers (51%)

John, Eugenie
27 readers (51%)

Corelli, Marie
22 readers (42%)

Roe, Edward Payson
27 readers (51%)

Alexander, Mrs
25 readers (48%)

Crawford, F Marion
26 readers (50%)

Barrie, J M
22 readers (42%)

Barr, Amelia Edith Huddleston
23 readers (44%)

(a)Typical readers

200 Mary Leonard
read ALL of the common authors

2473 Sarah Leonard
read NONE of the common authors

347 Kate Wilson
read NONE of the common authors

3561 J. E. Soper
read NONE of the common authors

3607 Anna Powers
read NONE of the common authors

5192 Emily Martin
read NONE of the common authors

657 Mary Bryant
read ALL of the common authors

956 Sarah Goodin
read ALL of the common authors



52 readers
417 authors

(a)Typicalness

5 readers (9%)
read 0% of the commonly read authors

2 readers (3%)
read 12% of the commonly read authors

6 readers (11%)
read 25% of the commonly read authors

5 readers (9%)
read 37% of the commonly read authors

20 readers (38%)
read 50% of the commonly read authors

4 readers (7%)
read 62% of the commonly read authors

3 readers (5%)
read 75% of the commonly read authors

4 readers (7%)
read 87% of the commonly read authors

3 readers (5%)
read 100% of the commonly read authors




Men 14 years old and younger

Commonly read authors

Ellis, Edward Sylvester
197 readers (83%)

Alger, Horatio
218 readers (92%)

Trowbridge, J T
126 readers (53%)

Stoddard, William Osborn
113 readers (48%)

Munroe, Kirk
116 readers (49%)

Adams, William Tq
191 readers (81%)

Ballantyne, R M
110 readers (46%)

King, Charles
97 readers (41%)

Alcott, Louisa May
106 readers (45%)

Henty, G A
109 readers (46%)

Fosdick, Charles Austin
214 readers (91%)

Otis, James
122 readers (51%)

(a)Typical readers

1100 Rudolph Bloom
read ALL of the common authors

1221 Robert Mock
read ALL of the common authors

187 Clyde Leager
read ALL of the common authors

3321 Archie Race
read ALL of the common authors

337 Warren Hutsell
read ALL of the common authors

3792 Robert Briner
read NONE of the common authors

3867 Arthur Walling
read ALL of the common authors

540 Loys Saxon
read ALL of the common authors

546 Warren Sample
read ALL of the common authors

575 Ralph Brown
read ALL of the common authors

576 Guy Tweedy
read ALL of the common authors

586 Herbert Houze
read ALL of the common authors

592 Newton Peterson
read ALL of the common authors

659 Roy Palmer
read ALL of the common authors

711 Leonard Leslie
read ALL of the common authors

818 Louis Bloom
read ALL of the common authors

992 Merton Hamilton
read ALL of the common authors



235 readers
366 authors

(a)Typicalness

1 readers (0%)
read 0% of the commonly read authors

1 readers (0%)
read 8% of the commonly read authors

7 readers (2%)
read 16% of the commonly read authors

4 readers (1%)
read 25% of the commonly read authors

23 readers (9%)
read 33% of the commonly read authors

27 readers (11%)
read 41% of the commonly read authors

28 readers (11%)
read 50% of the commonly read authors

36 readers (15%)
read 58% of the commonly read authors

29 readers (12%)
read 66% of the commonly read authors

25 readers (10%)
read 75% of the commonly read authors

22 readers (9%)
read 83% of the commonly read authors

16 readers (6%)
read 91% of the commonly read authors

16 readers (6%)
read 100% of the commonly read authors




Men 15 to 19 years old

Commonly read authors

Munroe, Kirk
111 readers (45%)

Trowbridge, J T
129 readers (52%)

Alger, Horatio
216 readers (88%)

Ellis, Edward Sylvester
200 readers (81%)

Stoddard, William Osborn
125 readers (51%)

Adams, William Tq
193 readers (78%)

Ballantyne, R M
113 readers (46%)

Henty, G A
118 readers (48%)

Fosdick, Charles Austin
215 readers (87%)

Otis, James
104 readers (42%)

(a)Typical readers

1015 Harry Keltner
read ALL of the common authors

1076 Clarence Leager
read ALL of the common authors

1100 Rudolph Bloom
read ALL of the common authors

1221 Robert Mock
read ALL of the common authors

1255 Herbert Maddy
read NONE of the common authors

187 Clyde Leager
read ALL of the common authors

2129 Ernest H. Pershing
read NONE of the common authors

3183 H. M. Denslow
read NONE of the common authors

3265 Leslie Greely
read ALL of the common authors

3320 Fred Preston
read ALL of the common authors

3321 Archie Race
read ALL of the common authors

337 Warren Hutsell
read ALL of the common authors

3504 Clyde McAllister
read ALL of the common authors

3792 Robert Briner
read NONE of the common authors

3867 Arthur Walling
read ALL of the common authors

4059 Wm Hanley
read ALL of the common authors

540 Loys Saxon
read ALL of the common authors

546 Warren Sample
read ALL of the common authors

575 Ralph Brown
read ALL of the common authors

576 Guy Tweedy
read ALL of the common authors

577 Walter Heffner
read ALL of the common authors

584 Ross Ault
read ALL of the common authors

586 Herbert Houze
read ALL of the common authors

588 Dwight Denslow
read NONE of the common authors

592 Newton Peterson
read ALL of the common authors

595 Leroy Weaver
read ALL of the common authors

600 Charles Reece
read ALL of the common authors

659 Roy Palmer
read ALL of the common authors

818 Louis Bloom
read ALL of the common authors

992 Merton Hamilton
read ALL of the common authors



245 readers
453 authors

(a)Typicalness

5 readers (2%)
read 0% of the commonly read authors

8 readers (3%)
read 10% of the commonly read authors

5 readers (2%)
read 20% of the commonly read authors

15 readers (6%)
read 30% of the commonly read authors

22 readers (8%)
read 40% of the commonly read authors

37 readers (15%)
read 50% of the commonly read authors

38 readers (15%)
read 60% of the commonly read authors

36 readers (14%)
read 70% of the commonly read authors

28 readers (11%)
read 80% of the commonly read authors

26 readers (10%)
read 90% of the commonly read authors

25 readers (10%)
read 100% of the commonly read authors




Men 20 to 29

Commonly read authors

Alger, Horatio
86 readers (67%)

Roe, Edward Payson
54 readers (42%)

Ellis, Edward Sylvester
73 readers (57%)

Adams, William Tq
69 readers (53%)

King, Charles
57 readers (44%)

Fosdick, Charles Austin
80 readers (62%)

(a)Typical readers

1100 Rudolph Bloom
read ALL of the common authors

111 Burt Bradbury
read NONE of the common authors

1244 J. E. Ethell
read NONE of the common authors

1255 Herbert Maddy
read NONE of the common authors

166 Roy Harrington
read ALL of the common authors

1723 J. L. McPherson
read NONE of the common authors

1817 Ray G Hickok
read NONE of the common authors

1903 Phil Newman
read NONE of the common authors

217 David F. Richards
read ALL of the common authors

3367 Arthur Ramey
read NONE of the common authors

3840 Ned James
read NONE of the common authors

526 Harry Greer
read ALL of the common authors

537 Louis Icerman
read ALL of the common authors

600 Charles Reece
read ALL of the common authors

818 Louis Bloom
read ALL of the common authors

95 Wm. F. Gill
read ALL of the common authors

971 Alfred Kilgore
read ALL of the common authors

984 George Burt
read ALL of the common authors

999 Oscar Black
read ALL of the common authors



128 readers
454 authors

(a)Typicalness

8 readers (6%)
read 0% of the commonly read authors

11 readers (8%)
read 16% of the commonly read authors

22 readers (17%)
read 33% of the commonly read authors

29 readers (22%)
read 50% of the commonly read authors

24 readers (18%)
read 66% of the commonly read authors

23 readers (17%)
read 83% of the commonly read authors

11 readers (8%)
read 100% of the commonly read authors




Men 30 to 39

Commonly read authors

Alger, Horatio
28 readers (44%)

Burnett, Frances Hodgson
26 readers (41%)

Crawford, F Marion
26 readers (41%)

(a)Typical readers

1000 Michael Mahoney
read NONE of the common authors

1013 H. F. Lingle
read ALL of the common authors

1244 J. E. Ethell
read NONE of the common authors

2160 J Meredith
read NONE of the common authors

2302 Albert Ault
read ALL of the common authors

329 C H C Blue
read NONE of the common authors

336 W A Frazer
read NONE of the common authors

3436 Wm Emmons
read NONE of the common authors

3457 E. G. Hayler
read ALL of the common authors

3490 J. W. Kirkpatrick
read NONE of the common authors

3492 J. F. Kiser
read NONE of the common authors

3596 E. W. Younce
read NONE of the common authors

4203 Edward Noland
read NONE of the common authors

4246 J. L. Scott
read NONE of the common authors

4409 C. L. Smeltzer
read NONE of the common authors

4553 Wm A Spurgeon
read NONE of the common authors

520 J. W. Oxley
read ALL of the common authors

638 Elmer Gest
read NONE of the common authors

985 Robbie Scott
read ALL of the common authors



63 readers
407 authors

(a)Typicalness

14 readers (22%)
read 0% of the commonly read authors

23 readers (36%)
read 33% of the commonly read authors

21 readers (33%)
read 66% of the commonly read authors

5 readers (7%)
read 100% of the commonly read authors




Men 40 to 49

Commonly read authors

Roe, Edward Payson
29 readers (46%)

Adams, William Tq
26 readers (41%)

Burnett, Frances Hodgson
33 readers (52%)

Crawford, F Marion
27 readers (42%)

Alger, Horatio
36 readers (57%)

Fosdick, Charles Austin
29 readers (46%)

(a)Typical readers

109 Lon M. Neely
read NONE of the common authors

1725 F. B. Miller
read NONE of the common authors

360 Will M. Patterson
read NONE of the common authors

4553 Wm A Spurgeon
read NONE of the common authors

5971 Ben Rosenbush
read NONE of the common authors

859 S. B. Garrett
read ALL of the common authors

953 R. W. Monroe
read ALL of the common authors

989 Enos Baldwin
read ALL of the common authors



63 readers
436 authors

(a)Typicalness

5 readers (7%)
read 0% of the commonly read authors

11 readers (17%)
read 16% of the commonly read authors

11 readers (17%)
read 33% of the commonly read authors

10 readers (15%)
read 50% of the commonly read authors

16 readers (25%)
read 66% of the commonly read authors

7 readers (11%)
read 83% of the commonly read authors

3 readers (4%)
read 100% of the commonly read authors




Men 50 and older

Commonly read authors

Carey, Rosa Nouchette
17 readers (41%)

Alger, Horatio
22 readers (53%)

Adams, William Tq
19 readers (46%)

Crawford, F Marion
22 readers (53%)

Stannard, Henrietta Eliza Vaughan Palmer
18 readers (43%)

(a)Typical readers

25 A. J. Wilson
read ALL of the common authors

4437 Turner C McKinney
read NONE of the common authors

5830 Fred Putnam
read NONE of the common authors

848 Jas B Ludlow
read NONE of the common authors

859 S. B. Garrett
read ALL of the common authors

89 Isadore Kuhn
read NONE of the common authors

953 R. W. Monroe
read ALL of the common authors



41 readers
402 authors

(a)Typicalness

4 readers (9%)
read 0% of the commonly read authors

5 readers (12%)
read 20% of the commonly read authors

14 readers (34%)
read 40% of the commonly read authors

10 readers (24%)
read 60% of the commonly read authors

5 readers (12%)
read 80% of the commonly read authors

3 readers (7%)
read 100% of the commonly read authors