-39%About This Book 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. Book Details Author: Erich Gamma (Author), Richard Helm (Author), Ralph Johnson (Author), John Vlissides (Author) Publisher: Addison-Wesley Professional ISBN-13: 9780201633610 Language: English Why Buy From TextBooksPrepping? Fast USA shipping. Trusted academic bookstore for students and professionals.