Providers of human services are aware of the necessity for systematic outcome evaluations as an integral part of program delivery. Posavac and Carey (1997) have written a compact and well organised text for introducing the reader to the practical aspects of designing, implementing and communicating the results of program evaluations in the broad (health, education, welfare) area of human services. This is the fifth edition of the book, an indication that readers have, for over fifteen years, found it a useful introductory text.