The book combines the research results of well-known scientists and the experience of practitioners, giving the reader complete and systematic information about the theory of sensory integration, as well as diagnostics and therapy based on a sensory-integrative approach. This approach, developed by E. Jean Ayres and developed thanks to her students and colleagues - the authors of this book - offers a system for analyzing child problems, which gives a common language to a wide variety of specialists: neuropsychologists and correctional educators, rehabilitation and neurologists, occupational therapists and kinesiotherapists.