In the year 2000, his book on the life of Muhammad in 20 stories, won the Bologna Fair award. If we do not help him or her to create this universe, the child on its own constructs it and brings it to life. It is where he or she keeps the stories and fables they have heard, where they reorganize the world according to their own vision, and in the exact way they themselves wish to portray it. The Valiant skipper a novel published 1991. Uncle Ni'ina' probably the first play ever to be written in Arabic for children, was presented in the sixties in the Cairo Opera House.
Colors is a fascinating collection of nine books.
The first reveals what Physics and Optics are to Colors. Each of the other books then discusses each color separately. Animals and inanimate objects familiar to the child are the narrators. In English Arab Pioneers and Western Scientists in a Strange Encounter published in English in 1984. In this Egyptian State prize winning book, Youssef brilliantly sets imaginary encounters between Western and Arab scientists, separated by centuries, but linked by the same scientific disciplines.