EDITORIAL FOREWORD 9
ACKNOWLEDGEMENTS 10
1 What do we mean by ＇Thinking＇？ 11
2 Problem-Solving Behaviour in Animals 30
3 Problem-Solving Behaviour in Human Beings 47
4 Concepts and their Attainment 63
5 Concept Formation in Children 88
6 Learning Operations 108
7 Transfer and Interference 133
8 The Dynamics of Thinking：Motivation and Thought 148
9 Language and Thought 164
10 Creative Thinking 183
11 What do we know about Thinking？ 203
INDEX 213
ADDITIONAL REFERENCES 216