If You're Reading This, It's Too Late is the sequel to The Name of this Book is Secret in the Secret Series by Pseudonymous Bosch. It was released in October 2008 and features the same characters as the first book. The sequel to this book, and the third book in the Secret Series, This Book Is Not Good for You, came out on September 1, 2009 to Amazon customers and August 31, 2009 to consumers that visited Barnes and Noble that day. The Barnes and Noble version came with an exclusive card telling you a number to call to find clues to the identity of Pseudonymous Bosch.