Dick Van DykeDick Van Dyke has signed a deal with Weinstein Books.

According to The Hollywood Reporter, the nonfiction book, entitled Keep Moving: And Other Tips About Old Age, will be released on December 13, 2015. The publication date was chosen to coincide with the actor’s 90th birthday.

Editorial director Amanda Murray negotiated the deal with Trident literary agent Dan Strone. With this project, Van Dyke (pictured, via) will discuss “his approach to growing old.” He promises that he’s “not going to sugarcoat anything,” but his objective is “to assure people that there is a beautiful life waiting” during one’s golden years.