Health & Fitness 1,363

Family & Relationships 1,195

Politics 1,126

Religion & Spirituality 1,123

Psychology 1,073

Essays 1,034

Cooking & Food 1,029

Study Aids & Workbooks 913

Language Arts 893

Reference 852

New Age 835

Science 620

Education 539

Humor (Nonfiction) 453

Military 443

Literary Criticism 438

Performing Arts 438

Christian Nonfiction 427

Philosophy 418

Travel 418

True Crime 418

Medical 406

Computer Technology 390

Art 386

Finance 350

Self Help 316

Nature 301

Economics 294

Sports & Recreations 293

Careers 290

Technology 245

Multi-Cultural 225

Crafts 209

Women's Studies 192

Music 185

Home Design & Décor 184

Gardening 169

Foreign Language Study 154

Law 112

African American Nonfiction 107

LGBTQIA+ (Nonfiction) 80

Pets 78

Mathematics 74

Non-English Nonfiction 61

Children 52

Games 50

Photography 48

Management 43

Architecture 40

Ethics 39

Writing 32

Physics 31

Transportation 29

Professional 28

Engineering 24

Marketing & Sales 24

Gender Studies 22

Judaica 22

Chemistry 21

Sales & Marketing 21

Entertainment 20

Geography 16

Analysis 15

Media Studies 13

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