Plotnik's Fourth Edition captures the excitement of the current research that is going on in the discipline, while still retaining the "classic" studies that are important to careful development of the subject matter. Plotnik adds coverage of new topics such as genetic research, repressed memory syndrome, and many others as well as updating research in every module. Plotnik has revised and updated his text page by page to increase the depth of coverage in key areas - without losing the student focus that made the book work so effectively in its previous edition. Each chapter's opening vignette serves to organize and tie information together as Plotnik moves through major concepts. Each of the module's key topics is covered ina one-, two-, or (very occassionally) four-page spread. By presenting information in these "bite-sized" chunks with fully integrated visuals, Plotnik makes the material more accessible to students and easier to recall.