Below is an entire bookstore as sectioned by the retail gods of proportional profits. Below this list are some personal observations.

1 Antiques & Collectibles
3 Art
5 Crafts & Hobbies
2 Wedding/Etiquette
1 Beauty & Fashion
1 Exercise & Fitness
3 Health & Wellness
5 Diets & Nutrition
1 Nursing
1 Medicine
2 Psychology
4 Personal Growth & Development

• 2 Self-Help
• 1 Relationships
• 1 Success

2 Gardening
1 Decorating/Interior Design
1 Home Reference
3 International Travel
2 Missouri Travel
1 Travel
2 U.S. Travel
9 Romance
8 Mystery
14 Science Fiction/Fantasy
7 Manga
7 Graphic Novels
6 Teen Fantasy & Adventure
2 Teen Romance
1 Teen Non-Fiction
5 Teen Fiction
1 Shakespeare
2 Poetry
1 Literary Theory
1 Westerns
34 Fiction & Literature
1 Hardcover Bestsellers
1 Paperback Bestsellers
1 Teen Bestsellers
1 Young Reader Bestsellers
1 Discover Great New Writers
6 Biography
2 Top Picks in Cookbooks
12 Cookbooks

• 1 Favorite Chefs
• 2 All-Purpose
• 1 Specialty Cookbooks
• 1 Grilling, Smokers, Slow Cookers & More
• 2 Diet, Special Diets, Paleo & Juicing
• 1 Vegetarian & Vegan
• 1 Breads, Cakes, Cookies & Desserts
• 1 Entertaining, Beer, Wines & Spirits
• 2 French, Italian & Regional World Cooking

1 On Screen
3 Music

• 1 Sheet Music, Songbooks & Scores
• 1 History & Reference
• 1 Biographies

2 Philosophy
1 Ancient Mysteries & Lost Knowledge
1 Supernatural & Mystical Philosophies
1 Divination & Dreams
1 Self-Transformation
6 Activity Books

• 1 Word Puzzles
• 2 Coloring
• 1 Card Games, Chess, Gambling & More
• 2 Crosswords

1 Religion
2 Christian Fiction
6 Christian Life

• 1 Christian History & Theology
• 3 Living the Christian Life
• 1 Words of Comfort
• 1 Marriage, Family & Relationships

1 Top Picks in Christian Life
5 Bibles
1 Cultural Studies
1 True Crime
10 History

• 4 U.S. History
• 3 War
• 3 World History

1 Social Sciences
3 Current Affairs

• 2 Domestic Affairs
• 1 World Affairs

1 College Life
4 Test Preparation

• 2 College-Level Exams
• 1 High School-Level Exams
• 1 Graduate-Level Exams

3 Language Learning
1 Libros en Espanol
3 Reference

• 1 Writing, Publishing & Editing, Style Guides & Grammar
• 1 Public Speaking, Dictionaries, Thesauri, Quotations, Almanacs & Atlases
• 1 Practical & How-To Guides, Disaster Preparedness, Genealogy & Legal

1 Top Picks in Business
6 Business

• 3 Management
• 1 Marketing Concepts, Marketing Strategies & Consumer Behavior
• 1 Economics & Financial Markets
• 1 Entrepreneurship, Start-Ups & Small Business

1 Top Picks in Money Management
1 Money Management (Personal Finance)
1 Top Picks in Technology
5 Technology

• 1 Online Life, Phones, Tablets & Other Devices
• 1 Photoshop, Graphics & Web Design
• 1 Programming
• 2 Mac OS X, Windows & Office Applications

5 Science

• 1 Science Writing & Reference
• 2 Physical Science
• 1 Biological Science
• 1 Math, Statistics & Probability

5 Sports

• 2 Team Sports
• 2 Individual Sports
• 1 Outdoor Sports & Survival

3 Humor (Books That Make You Laugh)
2 Nature & Wildlife
4 Parenting

• 1 Parenting
• 1 Pregnancy & Childbirth
• 1 Infant & Toddler
• 1 School Age

1 Pets
1 Dogs

Observations:

Science = Sports

Domestic Affairs + Nature & Wildlife = Parenting

Philosophy = Poetry

Reference + Humor + True Crime = Business

Current Affairs + Social Sciences +Cultural Studies + Divination & Dreams + Ancient Mysteries & Lost Knowledge + Literary Theory + Shakespeare + Antiques & Collectibles = History

Crafts & Hobbies = Diets & Nutrition

Technology = Biography

Christian + Bibles = Science Fiction / Fantasy

Art + Music + Activity Books + Money Management = Cookbooks

Language Learning + Current Affairs + College Life + On Screen + Beauty and Fashion + Self Transformation + Supernatural & Mystical Philosophies = Romance

Word Puzzles = Religion = Survival

Religion + Cultural Studies = Team Sports

Travel = Mystery

Marriage, Family & Relationships + Parenting = Crosswords

Exercise & Fitness + Nursing + Medicine = Health & Wellness

Coloring + Cultural Studies = War

Psychology = Beer, Wines & Spirits + Cakes, Cookies & Desserts + (1/2 Philosophy) - Biological Science