This is a list of adult fiction books that topped The New York Times Fiction Best Seller list in 2008.
The most popular books of the year were The Appeal, by John Grisham and Change of Heart, by Jodi Picoult with respectively 5 and 3 weeks at the top. The author James Patterson was at the top for four different books (Double Cross, Sundays at Tiffany's, Sail and Cross Country).
References
The New York Times Fiction Best Sellers of 2008 Wikipedia(Text) CC BY-SA