As if college weren't an expensive enough endeavor, textbook prices tend to range from shocking to outrageous. Save on your textbooks with these five great places to buy cheap textbooks.

Photo by a composite of images by vierdrie and Leonardini.

Earlier this week we asked you to share your favorite place to find cheap textbooks. We compiled the results and now we're back to share the five most popular places Lifehacker readers go to save on books.