Clark develops in a very clear way the main threads of contemporary mind-body research. He argues for a non-dogmatic approach to the very difficult questions that epistemology, brain research and artificial life have put in the last twenty years. His position is with those who are not trying to explain everything from a single source or with single set of tools. Not reductionism, not holism or not only emergence or cognitivism or connectionism. Still, he sees the advantages of each theory and he gives a very subtle and insightful overview of what each strand has to contribute. I have read maybe twenty books on the subject in the past few months, from Varela to Jackendorf and from Minsky to Harré, but only Clark seems to be able to make the field transparent and coherent. If he sometimes loses in boldness, he certainly wins in promise. A book that should become a compulsary reading for anyone who wants to be introduced in the field.