This book is a partially annotated bibliography of books, articles and periodicals concerned with mathematical games, puzzles, tricks, amusements, and paradoxes. The present volume is an update of volume 3. Except for a few minor changes in classification, the organization remains essentially the same. Most of the more than 2,600 references listed have appeared since 1972. As in earlier volumes, a given reference has occasionally been entered under two different headings. The chronological listing of Gardner's column in the "Scientific American" has been updated and given in its entirety. A supplementary glossary includes over 200 terms not given in the glossary of volume 3. (Author/MP)