The Time Traveler's Wife is a bestselling novel by Audrey Niffenegger. It is an unconventional love story that centers on a man with a strange genetic disorder that causes him to unpredictably time-travel and his wife, an artist, who has to cope with his frequent absences and dangerous experiences. In this book, unlike many other time travel stories, it is not possible to change the past or future. (Wikipedia)
is due for release on August 14, 2009.