Originally published in 1909 for those who didn't have the chance to go to college as a way for them to get the knowledge they missed. 2000 years of human endeavor packed into 50 books covering all subjects with a book as an index and a student guide. Very handsome, available in sets and also online but second-hand sets and specific books are also around if your set is incomplete. You could otherwise subscribe online and have access to the entire catalogue for much less than you'd pay for a full set. Recommended!
