Business 6,483

Religion & Spirituality 5,945

Politics 5,548

Family & Relationships 4,653

Health & Fitness 4,152

New Age 3,890

Psychology 3,190

Sports & Recreations 3,020

Crafts 2,914

Science 2,903

Reference 2,642

Travel 2,593

Christian Nonfiction 2,572

Art 2,344

Performing Arts 2,130

Humor (Nonfiction) 2,117

Essays 2,082

Military 1,995

Nature 1,968

Language Arts 1,822

Education 1,718

Literary Criticism 1,655

Foreign Language Study 1,494

Medical 1,463

True Crime 1,356

Philosophy 1,307

Music 1,221

Home Design & Décor 1,218

Economics 1,155

Study Aids & Workbooks 1,137

Computer Technology 1,077

Self Help 1,033

Women's Studies 1,013

Technology 976

Gardening 815

Pets 809

Finance 743

Multi-Cultural 709

Photography 690

LGBTQIA+ (Nonfiction) 668

Law 480

Careers 457

Games 398

African American Nonfiction 372

Writing 342

Architecture 336

Transportation 316

Mathematics 265

Antiques 235

Physics 121

Management 111

Engineering 106

Grammar & Language Usage 95

Judaica 93

Entertainment 81

Marketing & Sales 78

Ethics 77

Sales & Marketing 71

Chemistry 69

Media Studies 68

Professional 60

Children 54

Gender Studies 53

Geography 35

Psychiatry 29

Crime 26

Non-English Nonfiction 25

Foreign Language 21

Genealogy 16

Psychiatry & Psychology 15

Foreign Language Study - Spanish 15

Current Events 14

Comic and Graphic Books 10

Outdoor Recreation 10

Journalism 8

Foreign Language Study - French 6

Foreign Language Study - Italian 6

Inspirational 5

Drama 5

Research 5

Historical Fiction 4

Biology 4

Foreign Language Study - German 4

Literary Anthologies 4

Mystery 4

Scholarly 4

Analysis 3

Literature 3

Recovery 3

Humor (Fiction) 2

Foreign Language Study - Japanese 2

Child Development 2

Criticism 2

Fantasy 2

Antiquarian 2

Human Rights 2

Science Fiction 2

Text Book 2

Thriller 1

LGBTQIA+ (Fiction) 1

Foreign Language Study - English 1

Foreign Language Study - Korean 1

Foreign Language Study - Portuguese 1

Foreign Language Study - Russian 1

Social Studies 1

Ancient History 1

Foreign Language Study - Swedish 1

Erotic Literature 1

Feminist 1

Mythology 1

Romance 1

Short Stories 1

Christian Fiction 1