Business 5,371

Christian Nonfiction 5,257

Family & Relationships 4,527

Politics 4,352

Health & Fitness 4,126

Cooking & Food 4,016

Psychology 2,855

New Age 2,468

Science 2,182

Performing Arts 1,942

Sports & Recreations 1,874

Travel 1,872

Reference 1,829

Military 1,768

Essays 1,748

Humor (Nonfiction) 1,717

Literary Criticism 1,571

True Crime 1,565

Language Arts 1,531

Medical 1,386

Crafts 1,289

Study Aids & Workbooks 1,289

Nature 1,280

Education 1,271

Philosophy 1,185

Art 1,168

Computer Technology 1,073

Economics 983

Music 918

Self Help 854

Home Design & Décor 845

Finance 837

Technology 802

Women's Studies 796

Gardening 586

Pets 547

Multi-Cultural 473

Law 452

Foreign Language Study 418

LGBTQIA+ (Nonfiction) 416

Careers 408

Games 331

African American Nonfiction 282

Genealogy 275

Mathematics 241

Photography 237

Transportation 205

Architecture 203

Writing 188

Management 124

Ethics 100

Antiques 100

Judaica 99

Entertainment 93

Physics 90

Engineering 87

Grammar & Language Usage 85

Children 76

Professional 72

Marketing & Sales 67

Media Studies 58

Gender Studies 57

Current Events 51

Sales & Marketing 50

Chemistry 44

Geography 43

Psychiatry 38

Crime 27

Psychiatry & Psychology 26

Foreign Language Study - Spanish 21

Non-English Nonfiction 15

Scholarly 15

Drama 13

Foreign Language 13

Outdoor Recreation 10

Journalism 9

Report 9

Foreign Language Study - French 9

Research 8

Literature 7

Foreign Language Study - German 6

Foreign Language Study - Japanese 6

Mystery 6

Recovery 6

Text Book 6

Inspirational 5

Analysis 5

Comic and Graphic Books 4

Foreign Language Study - Chinese 4

Foreign Language Study - Italian 4

Child Development 4

Human Rights 4

Biology 3

Humor (Fiction) 3

Foreign Language Study - Portuguese 3

Fantasy 3

Short Stories 3

Thriller 2

Foreign Language Study - Vietnamese 2

Criticism 2

Feminist 2

Antiquarian 2

Classic Literature 1

Historical Fiction 1

Music-Sheet 1

LGBTQIA+ (Fiction) 1

Foreign Language Study - English 1

Foreign Language Study - Korean 1

Foreign Language Study - Russian 1

Social Media 1

Antiques & Collectibles 1

Foreign Language Study - Swedish 1

Erotic Literature 1

Literary Anthologies 1

Foreign Language Study - Arabic 1

Poetry 1

Romance 1

Suspense 1

Christian Fiction 1