A bestselling picture book perfect for Father's Day from Tonight Show's Jimmy Fallon.Your baby's first word will be . . ."Dada!"Right?Everyone knows that fathers wage a secret campaign to ensure that their babies' first word is "Dada!" But how does it work? Jimmy Fallon, one of the most popular entertainers in the world and NBC's The Tonight Show host, shows you how.A New York Times bestselling picture book, perfect for Father's Day.'A punchy and deceptively simple story that will make for some fun readalouds.' - Publisher's Weekly