Can you judge a book by its cover?

Go to your neighborhood library or book store.  Select a book that you would like to read and take it home (make sure you check it out or pay for it first!).  Before you read anything inside the book, describe what you think about the book.  If it's a reference book, what do you hope to learn from it. If it's a work of fiction, how do you think the story might go? Will you enjoy reading it? Will you be inclined to read more by that offer? What drew you to this particular book?

Then, actually read the book and describe the book again.  Did you judge the book well, based on its cover?  Were you misled by the cover? If so, how?  What did you learn from the exercise?