This clearly written guide provides a succinct and well-organized overview of the principles of diagnostic classification used by the DSM-IV. Readers learn how the DSM-IV "works" as a method of organizing and communicating our understanding of adjustment and cognitive disorders in youth. Chapters group diagnoses thematically by prominent presenting symptoms, focusing on the disorders most commonly encountered in school-age children and adolescents. The volume has now been updated with new information reflecting changes in the DSM-IV-TR, published in 2000, and the IDEA 1997 final regulations, published in 1999.