and are internationally recognized as leading voices in the software development community. They consult and speak around the world. Together, they founded the Pragmatic Bookshelf, publishing award-winning, leading-edge books for software developers. They were two of the authors of the Agile Manifesto. Dave currently teaches college, turns wood, and plays with new technology and paradigms. Andy writes science fiction, is an active musician, and loves to tinker with technology. But, most of all, they’re both driven to keep learning.

Topic 1. It's Your Life 2 Topic 2. The Cat Ate My Source Code 3 Topic 3. Software Entropy 6 Topic 4. Stone Soup and Boiled Frogs 8 Topic 5. Good-Enough Software 11 Topic 6. Your Knowledge Portfolio 14 Topic 7. Communicate! 20 Topic 8. The Essence of Good Design 28 Topic 9. DRY–The Evils of Duplication 30 Topic 10. Orthogonality 39 Topic 11. Reversibility 47 Topic 12. Tracer Bullets 51 Topic 13. Prototypes and Post-it Notes 56 Topic 14. Domain Languages 60 Topic 15. Estimating 66 Topic 16. The Power of Plain Text 74 Topic 17. Shell Games 78 Topic 18. Power Editing 81 Topic 19. Version Control 84 Topic 20. Debugging 88 Topic 21. Text Manipulation 97 Topic 22. Engineering Daybooks 100 Topic 23. Design by Contract 104 Topic 24. Dead Programs Tell No Lies 112 Topic 25. Assertive Programming 115 Topic 26. How to Balance Resources 118 Topic 27. Don’t Outrun Your Headlights 125 Topic 28. Decoupling 130 Topic 29. Juggling the Real World 137 Topic 30. Transforming Programming 147 Topic 31. Inheritance Tax 159 Topic 32. Configuration 167 Topic 33. Breaking Temporal Coupling 172 Topic 34. Shared State Is Incorrect State 176 Topic 35. Actors and Processes 183 Topic 36. Blackboards 189 Topic 37. Listen to Your Lizard Brain 196 Topic 38. Programming by Coincidence 201 Topic 39. Algorithm Speed 207 Topic 40. Refactoring 213 Topic 41. Test to Code 218 Topic 42. Property-Based Testing 228 Topic 43. Stay Safe Out There 235 Topic 44. Naming Things 242 Topic 45. The Requirements Pit 250 Topic 46. Solving Impossible Puzzles 258 Topic 47. Working Together 262 Topic 48. The Essence of Agility 265 Topic 49. Pragmatic Teams 270 Topic 50. Coconuts Don’t Cut It 276 Topic 51. Pragmatic Starter Kit 280 Topic 52. Delight Your Users 287 Topic 53. Pride and Prejudice 288