Children and Adolescents presents fifteen essays wherein David Elkind, noted interpreter of Piaget's work, again demonstrates how Piagetian theory can be used to derive practical implications for education and clinical diagnosis. He presents Piaget's basic concepts - assimilation, accommodation, equilibrium, cognitive structures, mental operations and schema - and describes the periods into which the work falls, outlining the stages of intelligence development as Piaget understands them. Four new essays have been added for this edition. The first continues to develop the approach to beginning reading initiated in previous editions; the second piece explains Piaget's theory of play. In the third, Professor Elkind demonstrates how the informal programs of the British infant schools are an embodiment of Piagetian theory. The fourth essay applies some of Piaget's theories to the education of adolescents.