How to hug a cactus? A book for parents who want to understand their teens

This book is for those who have an incomprehensible, capricious, sharp, aggressive teenager at home, who was a sweet, affectionate, kind kid yesterday.
And for those who have a closed, silent, offended teenager at home, who yesterday was smiling, sociable, open.
This book is designed to help moms and dads understand and accept their "new" child who has grown up. Caring parents will learn to understand the reasons for their teenager's behavior, not to make hasty decisions, to find common ground with the child, to use the right words. And the main thing is to see the good in your child, even if you can't see it now.