The 10 Most Expensive Books Of 2006 - Forbes.com

re: "...Auction houses and collectors did brisk business in rare books in 2006, setting records in several categories. A 15th-century edition of maps by the second-century Greek mathematician Ptolemy brought in $4 million, the highest price ever paid for an atlas. An 1873 signed edition of Une saison en enfer (A Season in Hell) by the poet Arthur Rimbaud brought in a record price for a work of French literature, $644,000..."...