My husband, and father of my children, has one joke. Ready? Why does a gorilla have big nostrils? Because it has big fingers. He tells it every chance he gets. Daily. To everyone he meets. I had hoped to supplant his joke, but this book is really right along that vein . . . these really are DAD jokes. He loves them and has taken great pleasure in reading them out loud while the rest of the family groans. On the other hand . . . I am a swim coach. At the age I coach (11-12) kids are REALLY hard on themselves. I have found when a swimmer is beating themselves up for missing a cut (my own daughter missed two by .01 of a second on the same day. ) this type of joke is really useful. I can tell a groaner and they can laugh at the dense adult that thought it was funny. It also works to give a teammate a joke and send them over . . . doesn't fail. The back of the book has a short section of riddles (49) of them. And they are groaners too. And short one page dad things -- like helping your kid look for the chocolate you ate last night. He does that. The book is small, but well made with a matte cardstock cover and strong binding. The pages are slightly thicker than standard, and the font choice is easy to read and printed at an appropriate size. The only flaw in this book? It's missing the best joke of all. So . . . why does a gorilla have big nostrils?