The author of the books in this series is Olga Zemtsova, candidate of pedagogical sciences, head of the Center for Preschool Development and Parenting. The purpose of the method developed by the author is the integrated development of the child, taking into account the requirements of modern preschool education. Method O.N. Zemtsova forms in children not only a knowledge system, but also a positive attitude towards learning, self-confidence and a focus on results. In this series you will find books with test items of three difficulty levels for different age groups. Pursuing books, you can test your child’s knowledge and find out what skills need further development. Recommended for classes with children in kindergarten and at home.