Babies Who Laugh More, Learn More. Dr. Caspar Addymanget Little Ones Giggling With Babies Laugh All Day Long – A Joyful Board Book With A Soft Squeaker Button, Perfect For Little Hands To Press!Written By Dr. Caspar Addyman, A Leading Expert In What Makes Babies Laugh, Babies Laugh All Day Long Has Been Scientifically Developed To Help Babies And Carers Bond Through Reading And Laughter.With Bouncy Read-Aloud Words And Adorable Illustrations Of Laughing, Smiling Babies By Ania Simeone, Little Ones Will Love Going Through The Five Familiar Daily Moments Together – Changing Diaper Time, Dinner Time, Play Time And Bath Time, Ending With A Cozy Bedtime Scene!