Not content with being a super-producer and making the world Happy, Pharell’s now turning into an author.

He’s signed a deal to turn his Oscar-nominated song into a series of children’s picture books. The first title, ‘Happy’, will be released in the U.S. On September 22 and the UK on Octber 6.

The book will feature pictures of kids from around the world showing what it means to be happy.

“I’m humbled by the global success of ‘Happy,’ but especially in awe of the song’s young fans,” Williams said in a statement.