Little children are a lot like... cavemen. This is the key idea from Dr. Harvey Karp's book that he advises all parents to adopt. The brain of babies from one to four years is still immature, and the psyche is characterized by a lack of flexibility. Hence - children's stubbornness, whims and disobedience. Therefore, it is necessary to communicate with the kids in a language they understand. The unique methodology proposed in the book will help parents instill in their child such qualities as benevolence and patience; teach him to be a good friend and listener; develop self-confidence and healthy self-esteem in him; raise him to be a happy person.