By Lisa Swerling & Ralph Lazar, Authors. From the creators of the Happiness Is . . . series (more than 200,000 copies in print!) comes a smile-worthy gift book to show dads how much we care—on Father's Day, their birthday, or any other day of the year. Each book features 200 reasons to treasure those only-with-Dad moments, from getting much-needed advice to learning a new recipe, building a tree fort, taking a long walk together, sharing inside jokes, or just getting a big hug. Featuring the brand's signature sweet illustrations and friendly tone, these books celebrate all the personal moments, big and small, that we love to share with Dad.