This little book contains fill-in-the-blank lines to describe why your mom&#039;s the best <br>Just complete each line and voila: you have a uniquely personal gift Mother will read again and again <br>Make it as hilarious, honest, or heartfelt as you choose! <br>Great as a Mother&#039;s day gift from kids of all ages <br>Knock Knock is an independent maker of clever gifts, books, and whatever else they can think up; their mission is to bring humor, creativity, and smarts to everyday life