"Happiness Is..." is a book and merchandise series based on the cartoon created by New York Times Bestselling authors.
[1] Lisa Swerling & Ralph Lazar, which features a collection of single frame images of "What makes you happy?"
It was launched on Facebook while the couple were living in Sayulita, Mexico, in July 2013.
As of July 2021, there were over 10,000 images in the collection, and the Facebook page had over 3.3 million followers.
[2] Chronicle Books of San Francisco holds global book publishing rights to the first 8 titles published from 2014 to 2018.