This text is intended to help diligent readers pass the Sun certified web component developer exam, which the authors describe as "hard." Despite this difficult mission, the book provides an enjoyable presentation of a complex technology--the use of Java Servlets and JSP in web applications. The chapters do not consist of the usual dense, paragraphed text found in most technical books. Rather almost every page contains an array of visual elements, handwritten notations, diagrams, and wry comments to provide a learning experience more like a classroom.