Agile Principles, Patterns, and Practices in C# (Robert C. Martin Series)

Practices of an Agile Developer: Working in the Real World (Pragmatic Programmers)

Andy Hunt

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Lean Software Development: An Agile Toolkit

Mary Poppendieck

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Polished Ruby Programming: Build better software with more intuitive, maintainable, scalable, and high-performance Ruby code

Jeremy Evans

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