They are great places to browse when you don't know what you want to read. The easiest and surest way to find a book is to go to a major book store. They are outrageous. Unless time is more precious than money to you, I don't recommend this avenue. I haunt used bookstores frequently.
Books are half-price or less and the choices are surprising.
Find one near you by looking in the phone book. Read Publisher's Weekly reviews to find out what the critics say about the book. Lists include bestsellers, recommended books, award winners and Oprah books.