The Pragmatic Programmer Summary: What Holds Up After 27 Years (And What Doesn’t)

The Pragmatic Programmer by Andrew Hunt and David Thomas provides practical advice for software developers. Key principles include continuous learning, DRY (Don't Repeat Yourself) to avoid duplication, orthogonality for independent components, design by contract for clear interfaces, incremental development with small tasks, automation of repetitive tasks, code reviews and pair programming, comprehensive testing, managing technical debt, and adaptability. The authors emphasize lifelong learning and balancing DRY with WET (Write Everything Thrice) to avoid overengineering.