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C# - Gang Of Four - Design Patterns, Elements Of Reusable Object Oriented Software Erich Gamma, John M. Vlissides, Ralph Johnson, Richard Helm
Publisher: Addison-Wesley Professional

Note: This is part of an ongoing series introducing patterns at the Tampa C# Meetup. How often have you seen the disclaimer, "This isn't Although it is written for Java developers, it is equally applicable to and comprehensible by C# developers. It covers the classic "Gang of Four" software Design Patterns: Elements of Reusable Object-Oriented Software by Gamma, Helm, Johnson, and Vlissides (aka The Gang of Four). However, I find myself using the Head First Design graphical depictions of the patterns. Design patterns gained popularity in computer science after the book Design Patterns: Elements of Reusable Object-Oriented Software was published in 1994 by the so-called "Gang of Four" (Gamma et al.). Release It!: Design and Deploy Production-Ready Software by Michael Nygard. Introduction No introduction to patterns is complete The Design Patterns book, commonly referred to as the Gang of Four because of the four authors, is the baseline must-have book in this space. One of the best sources about software design patterns is the “Design Patterns: Elements of Reusable Object-Oriented Software” book by the Gang of Four. Singleton is presented as one of the Creational pattern in Gang of Four's famous Design Patterns: Elements of Reusable Object-Oriented Software. Basically it says that if you have a set of operations which are If you're familiar with languages like Java or C#, you might have already noticed that using an abstract class and making the concrete classes inherit from this one will implement this pattern. This Pattern was first introduced in the book "Design Patterns: Elements of Reusable Object-Oriented Software", which is also known as the GoF book. Still, it is the bible of design patterns after all these years.