The book is divided into four sections, covering generalized anxiety disorder in the clinic and in the community, theoretical and empirical approaches, assessment and treatment, and special populations. It is subdivided into 16 chapters, each of which could be read in one good sitting. Of the 38 contributors, four are M.D.s. The book has more focus on theory and evaluative tools than I care for, but some of the theoretical ideas are interesting, such as the various psychological functions of worry—the cardinal symptom of generalized anxiety disorder—and the role of intolerance of uncertainty. I thought the first chapter, on clinical presentation and diagnostic features, by the three editors, was strong, as were the chapters on cognitive-behavioral therapy and integrative psychotherapy (cognitive-behavioral therapy and interpersonal therapy).