Health & Fitness 1,355

Family & Relationships 1,177

Religion & Spirituality 1,116

Politics 1,101

Psychology 1,064

Essays 1,033

Cooking & Food 1,030

Study Aids & Workbooks 912

Language Arts 887

Reference 854

New Age 827

Science 617

Education 537

Humor (Nonfiction) 454

Performing Arts 439

Military 439

Literary Criticism 437

Christian Nonfiction 421

Philosophy 417

Travel 414

True Crime 410

Medical 404

Computer Technology 389

Art 387

Finance 342

Self Help 308

Nature 299

Careers 289

Economics 289

Sports & Recreations 288

Technology 245

Multi-Cultural 221

Crafts 208

Home Design & Décor 187

Women's Studies 186

Music 183

Gardening 169

Foreign Language Study 154

Law 111

African American Nonfiction 106

LGBTQIA+ (Nonfiction) 79

Pets 76

Mathematics 74

Non-English Nonfiction 61

Children 52

Games 50

Photography 48

Management 43

Architecture 40

Ethics 38

Writing 32

Physics 31

Transportation 29

Professional 28

Engineering 24

Marketing & Sales 24

Judaica 23

Gender Studies 22

Chemistry 21

Entertainment 19

Sales & Marketing 19

Geography 16

Analysis 15

Media Studies 12

Antiques 12

Grammar & Language Usage 10

Psychiatry & Psychology 8

Psychiatry 8

Foreign Language Study - Spanish 6

Current Events 6

Foreign Language Study - French 3

Foreign Language Study - Italian 3

Recovery 3

Crime 2

Foreign Language Study - German 2

Foreign Language Study - Japanese 2

Child Development 2

Foreign Language Study - Arabic 2

Outdoor Recreation 2

Research 2

Classic Literature 1

Comic and Graphic Books 1

Foreign Language Study - Portuguese 1

Foreign Language Study - Russian 1

Social Media 1

Criticism 1

Foreign Language Study - Greek 1

Foreign Language Study - Polish 1

Drama 1

Fantasy 1

Human Rights 1

Foreign Language 1

Scholarly 1

Text Book 1

Genealogy 1