Noah Coad's Reviews > Design Patterns: Elements of Reusable Object-Oriented Software

A must have primer for any developer working with object oriented code. While it was a decent read from front-to-back (though a bit long), it is even more useful as a reference. Some of the terms are outdated by today's coding conventions, but the principles still apply and it is a fair exercise in mentally converting between the lingo used in the book and what you may be familiar with in C#, Java, or another OOP. One interesting aspect is that you can immediately start to see what programming patterns you're already using today in the frameworks and libraries you may be using on a daily basis. Putting a name to these design patterns, such as Factory, Command, etc helps to identify them and understand them so you as a developer know when best to apply them to your own code. Certainly worth having on any OOP software developer's bookshelf.