what book is christmas with the kranks based on

"Christmas with the Kranks" is based on a novel by John Grisham called "Skipping Christmas." In the book, a couple named Luther and Nora Krank decide to forgo all the usual holiday traditions and instead take a cruise to the Caribbean during the Christmas season. They face a lot of pushback from their neighbors and friends who are used to seeing them be part of the holiday festivities. It's a heartwarming story of self-discovery and learning to appreciate the things that really matter.