The Greatest Books, Part 2 - Page 24

"This list is generated from 114 "best of" book lists from a variety of great sources. An algorithm is used to create a master list based on how many lists a particular book appears on. Some lists count more than others. I generally trust "best of all time" lists voted by authors and experts over user-generated lists. On the lists that are actually ranked, the book that is 1st counts a lot more than the book that's 100th."