Practical Guide offers a clear introduction to classical object-oriented design patterns, and explains how to use the latest features of C # 3.0 to code them. C # Design Patterns draws on new C # 3.0 language and 3.5. NET framework features to implement the 23 basic patterns, known developers who are working. The book is well organized and illustrated include: An explanation of design patterns and why they are used, with tables and guidelines to help you choose one pattern over another Illustrated coverage of each classic creation, Structural, and behavior patterns of design, including its representation in UML and the role of various players C # 3.0 introduces a feature- features with examples and summarized in sidebars for easy reference Examples of each pattern at work in the real program 3.5. NET is available for download from O'Reilly and co-author's site Quizzes and exercises to test your understanding of the material.