The host of NBC's Tonight Show and author of the #1 New York Times bestseller was on a mission with his first children's book, Your Baby's First Word Will Be Dada, to have every baby's first word be "Dada." And it worked! A lot of babies' first words were "Dada.' However, everything after that was "Mama." Full color. 8 1/2 x 8 1/2.