Reuven Feuerstein's work underpins almost all of current research and practice in thinking skills. This book is one of the few non-academic accounts of his work available in English. It describes how Feuerstein developed his analysis of the common cognitive deficiencies in children with learning difficulties, and provides a detailed explanation of the techniques which Feuerstein has developed to remedy those deficiencies. The book also reviews the growing body of research and applications in a variety of contexts.