Of course not.
Some people say it's any book that's easy to read.
All of the following are available in stores or on the Web, mostly in paperback. A rootless traveler finds a secret, unspoiled beach in Thailand. Classic novel of atomic war survivors awaiting death as radiation from northern hemisphere moves toward Australia. His wife's suicide sent Jack McCall fleeing to Rome, but family problems lure him back to South Carolina. The manager of the Nantucket Hotel and Beach Club deals with the arrival of an arch-enemy, a hurricane and true love.