With the exception of "The Quest for Cer-tainty "(Volume 4) this fifth volume brings together Dewey's writings for the 1929-1930 period. During this time Dewey published 4 books and 50 articles on philosophical, educational, political, and social issues. His philosophical essays include "What Humanism Means to Me" and "What I Believe, " both of which express Dewey's faith in man's potentialities and intel-ligence, and a lively "Journal of Philoso-phy "exchange with Ernest Nagel, Wil-liam Ernest Hocking, C. I. Lewis, and F. J. E. Woodbridge. Educational writings include "The Sources of a Science of Education. "The contents of this volume re-flect Dewey's increasing involvement in social and political problems.