<P>For many years, the <I>American Psychiatric Glossary</I> has been the standard reference for psychiatrists, residents, psychiatric social workers, and other mental health professionals. Last published 8 years ago, it enjoyed unparalleled dominance in the mental health market. Now comes <I>The Language of Mental Health: A Glossary of Psychiatric Terms</I>, which is designed not only to replace its predecessor but also to improve upon its offerings and bring the content firmly into the twenty-first century.<P>This comprehensive, user-friendly reference boasts an abundance of features, both time-tested and new, as follows: <ul>? The number of Glossary definitions has been increased by 25%, and coverage has been expanded to include terms specific to newer psychiatric subspecialties, such as geriatric psychiatry, addiction psychiatry, psychosomatic medicine, and child and adolescent psychiatry.? The section on Medications Used in Psychiatry is expanded and up to date. Medications are organized by drug class (e.g., antidepressants), subclass (e.g., selective serotonin reuptake inhibitors), trade name (e.g., Prozac), and generic name (e.g., fluoxetine).? The section on Psychiatric Measures is robust and detailed. For example, the entry under Neuropsychiatric Measures for Cognitive Disorders lists nearly a dozen assessments, along with their acronyms or abbreviations.? The section on Mental Health Resources includes vital descriptions and current contact information for dozens of organizations. The Web addresses are especially useful for those seeking immediate assistance or access to information. </ul><P>Although the reference maintains the level of theoretical, diagnostic, and therapeutic accuracy one would expect from a book for clinicians, it will also prove useful to advocacy groups, attorneys, and mental health patients and their families. Compact enough to slip into a pocket or briefcase, yet substantial enough to withstand frequent consultations and extended study, <I>The Language of Mental Health</I> is a worthy successor to the <I>American Psychiatric Glossary</I> and is the only reference of its caliber and completeness on the market.</P>