Originally published in 1987, the contributors bring their different orientations to the study of child development and genetic epistemology to show the continuing value of Piaget's theory and its fruitfulness in providing insights which permit the advancement of science.

Bärbel Inhelder and Denys de Caprona Introduction 1 Guy Cellérier Structures and Functions 2 Harry Beilin Current Trends in Cognitive Development Research: Towards a New Synthesis 3 Marie-Jeanne Borel Piaget’s Natural Logic 4 Jean-Blaise Grize Operatory Logic 5 Barry Richards Logical Reasoning, Development and Learning 6 Seymour Papert The Value of Logic and the Logic of Values 7 John M. Broughton The Masculine Authority of the Cognitive 8 Rolando García Sociology of Science and Sociogenesis of Knowledge 9 Susan Carey Theory Change in Childhood 10 Sybille K. Escalona Cognition in its Relationship to Total Development in the First Few Years of Life 11 Cesare Cornoldi Origins of Intentional Strategic Memory in the Child 12 Gerhard Steiner Spatial Reasoning in Small-size and Large-size Environments: In Search of Early Prefigurations of Spatial Cognition in Small-size Environments 13 Hans Aebli Development as Construction: Nature and Psychological and Social Context of Genetic Constructions 14 Reto Luzius Fetz The Coordination of Values: Current Relevance of the Piagetian Concept of Philosophy 15 Eduard Marbach Laws of Consciousness as Norms of Mental Development. Closing Debate