The best international writers specialized in the art of writing for children present this useful series with attractive colorful drawings that make reading an enjoyable process and nourish the child's taste as well as develop his skills and intelligence. In this series, the basic needs of the child were taken into account that fit the age stages and that respond to the educational goals emphasized by educators and specialists in pedagogy, so that the levels of the nine series were graded from the first level to the ninth level. Through it, the child becomes acquainted with the basic concepts, terms and names used by many discoverers and inventions, in addition to the animals, inanimate objects and things that he sees in the child's environment every day and raise their astonishment and questions.