Self-Improvement 9,789

Religion & Spirituality 6,769

Cooking & Food 6,424

Health & Fitness 5,738

Family & Relationships 5,365

Psychology 4,548

Science 4,020

New Age 3,603

Literary Criticism 3,144

Performing Arts 3,092

Military 3,080

Sports & Recreations 2,713

Philosophy 2,698

Christian Nonfiction 2,619

Economics 2,276

Medical 2,264

Education 2,204

Nature 2,200

Humor (Nonfiction) 2,128

True Crime 2,123

Travel 2,033

Computer Technology 2,012

Finance 1,980

Music 1,837

Reference 1,831

Art 1,816

Essays 1,756

Women's Studies 1,690

Language Arts 1,635

Foreign Language Study 1,397

Technology 1,345

Study Aids & Workbooks 1,257

Multi-Cultural 1,250

Self Help 1,179

Law 1,105

LGBTQIA+ (Nonfiction) 1,045

Crafts 919

Careers 813

Home Design & Décor 777

Pets 666

Gardening 532

Architecture 419

African American Nonfiction 418

Photography 389

Writing 387

Mathematics 368

Transportation 327

Judaica 313

Games 280

Non-English Nonfiction 254

Management 244

Grammar & Language Usage 204

Children 204

Engineering 192

Marketing & Sales 160

Sales & Marketing 155

Ethics 153

Physics 148

Antiques 129

Entertainment 127

Media Studies 123

Web Publishing 116

Geography 95

Gender Studies 75

Crime 69

Psychiatry 65

Chemistry 62

Professional 46

Current Events 42

Journalism 37

Psychiatry & Psychology 30

Research 27

Human Rights 22

Foreign Language Study - Spanish 21

Foreign Language 20

Text Book 12

Foreign Language Study - French 10

Scholarly 10

Genealogy 10

Analysis 9

Drama 8

Foreign Language Study - German 7

Foreign Language Study - Italian 7

Antiquarian 6

Literature 6

Literary Anthologies 6

Mystery 6

Foreign Language Study - Japanese 5

Foreign Language Study - Russian 5

Outdoor Recreation 5

Recovery 5

Romance 5

Science Fiction 5

Historical Fiction 4

Foreign Language Study - Portuguese 4

Communications 4

Criticism 4

Erotic Literature 4

Fantasy 4

Classic Literature 3

Biology 3

Report 3

Foreign Language Study - English 3

Foreign Language Study - Arabic 3

Suspense 3

Comic and Graphic Books 2

LGBTQIA+ (Fiction) 2

Foreign Language Study - Korean 2

Social Media 2

Inspirational 1

Foreign Language Study - Chinese 1

Foreign Language Study - Vietnamese 1

Child Development 1

Antiques & Collectibles 1

Ancient History 1

Foreign Language Study - Polish 1

Manufacturing 1

Publishing 1

Foreign Language Study - Swedish 1

Feminist 1

Short Stories 1