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

"Perfect for dads and young children to share." - Parents in Touch

"Fiendishly simple and cheeky Dad's will love reading it with their children. The naughty illustrations by Miguel Ordonez just add to the fun." - South Wales Evening Post (Swansea)