I was raised in a home where we never had "the talk". It was taboo. I've made a point to talk to my 5yo and it always felt like I wasn't finding the right words to not take away their innocence. This book helped so much in discussing these topics and the pictures and words are easy for a child to digest. There might be a few topics your child isn't quite ready for (more for school age), but it is a must for all kids 6+ and you can start teaching some of these topics in the book at age 3.