Here's a quick heads up: Stephen Colbert's new book - I Am America (And So Can You!) - will hit the streets on October 9. However, if you're really champing at the bit, you can download the book early, starting today, in audiobook format. The book is narrated by Colbert himself, which is a perk, and you can download it from Audible here.
To round things out, let us refer you to this video where Colbert, speaking at Book Expo America, pumps his new book, spars with Khaled Hosseini (author of The Kite Runner and A Thousand Splendid Suns), and trashes Cormac McCarthy. Have fun.