Aaron Beck, paterfamilias of cognitive therapy, has written extensively as his research and clinical offspring have grown: books on depression, anxiety disorders, personality disorders, and more. He can take just pride in this family. Practicality and clinical empiricism rank among the great attractions of cognitive therapy, but Beck has also long been interested in the theory behind these pragmatic advances. The first author of this volume, Brad Alford, seems more concerned with abstract cognitive theory than with clinical empiricism, but the book may be read in part as a genogram of cognitive therapy, summarizing and integrating Beck’s widespread accomplishments to date.