Business 1,528

Religion & Spirituality 1,100

Family & Relationships 1,069

Cooking & Food 1,058

Health & Fitness 976

Psychology 772

Science 755

Performing Arts 698

Humor (Nonfiction) 679

Literary Criticism 656

Sports & Recreations 589

Christian Nonfiction 512

New Age 512

True Crime 505

Military 472

Reference 453

Nature 437

Travel 423

Medical 414

Essays 401

Study Aids & Workbooks 293

Women's Studies 293

Education 270

Economics 268

Crafts 266

Foreign Language Study 265

Language Arts 235

Music 234

Art 230

Computer Technology 228

Philosophy 225

Self Help 213

Technology 212

Home Design & Décor 211

Finance 200

Multi-Cultural 174

LGBTQIA+ (Nonfiction) 160

Pets 150

Careers 148

Law 135

Gardening 112

African American Nonfiction 111

Photography 60

Writing 57

Games 49

Mathematics 47

Physics 41

Entertainment 40

Transportation 38

Architecture 37

Judaica 35

Management 34

Engineering 30

Children 30

Media Studies 23

Grammar & Language Usage 23

Marketing & Sales 21

Chemistry 17

Ethics 17

Foreign Language Study - Spanish 15

Gender Studies 14

Sales & Marketing 11

Antiques 11

Professional 11

Crime 10

Current Events 9

Foreign Language Study - Italian 6

Text Book 6

Foreign Language Study - French 5

Foreign Language Study - German 5

Psychiatry 5

Psychiatry & Psychology 4

Journalism 4

Geography 4

Non-English Nonfiction 3

Foreign Language Study - English 3

Foreign Language Study - Japanese 3

Outdoor Recreation 3

Scholarly 3

Foreign Language Study - Portuguese 2

Foreign Language 2

Research 2

Genealogy 2

Biology 1

Foreign Language Study - Russian 1

Foreign Language Study - Vietnamese 1

Ancient History 1

Drama 1

Human Rights 1

Literature 1

Foreign Language Study - Arabic 1

Mystery 1

Suspense 1