The book "Children with intellectual disabilities" was written by Alfred Binet and Theodore Simon and is one of the first scientific studies in the field of psychology and pedagogy devoted to the study of children's intellectual disabilities. In this book, the authors considered and systematized the main aspects of the development of children with mental developmental disabilities, highlighted the methods of diagnosis and education of such children. The book is an important source for psychologists, teachers and parents who are interested in the development of children with special needs.