I have "a little bit of everything" and quite a large "Mishmash" section. Listed below are the main categories of books I have.

Fiction

• Children's Books

• Science Fiction & Fantasy

• Historical Fiction

• General Novels of all kind

• Adventure & Suspense

• Mysteries

• Horror

• Horror/Fantasy

• General Romance

• Historical Romance

• Paranormal Romance

• Romantic Suspense

• Chick Lit. (Fun "beach novels" for women)

Non -- Fiction

• Biography & Memoirs
• History
• True Crime
• Philosophy & Religion
• Reference Books
• Self-Help/Psychology
• Sexuality/Erotic Fiction
• Science
• True Adventures
  & Travel Memoirs
• Business
• Parenthood & Pregnancy
• New Age
• Mishmash/Grab Bag

I have 4 "rack" displays that feature the newest titles by each author. Two have all the latest general fiction [bestsellers] and two have all the latest romantic fiction.