Capturing a wealth of experience about the design of object-oriented software, four top-notch designers present a catalog of simple and succinct solutions to commonly occurring design problems. Previously undocumented, these 23 patterns allow designers to create more flexible, elegant, and ultimately reusable designs without having to rediscover the design solutions themselves.
The authors begin by describing what patterns are and how they can help you design object-oriented software. They then

Foreword
I Guide to Readers
1 Introduction
2 A Case Study: Designing a Document Editor
II Design Pattern Catalog
3 Creational Patterns
4 Structural Patterns
5 Behavioral Patterns
6 Conclusion
Appendix A: Glossary
Appendix B: Guide to Notation
Appendix C: Foundation Classes
Bibliography
Index