Reiner, 87, is a 12-time Emmy Award winner who has written, directed or starred in "The Dick Van Dyke Show," "The Jerk," "Dead Men Don't Wear Plaid" and the "Ocean's Eleven" trilogy.
His work, "Just Desserts: A Novellah," is described in a news release as "a funny story of successful romance novelist Nat Noland who has just had his cage severely rattled. Noland decides to e-mail God with a list of suggestions. And he gets a reply."
It is to be published Sept. 1.
Reiner has also written "Tell Me Another Scary Story ... But Not Too Scary," a sequel to his 2003 children's book, "Tell Me a Scary Story." The sequel, which includes a CD featuring Reiner reading the tale, will be available Sept. 29.