I’ve been looking forward to Norm Kerth’s book since I first learned he was writing it. I need it for my consulting practice. My clients need it for their process improvement programs. The software industry needs it in order to become truly professional. And nobody in the world knows more about project retrospectives than Norm.

To me, retrospectives are primarily about learning. Without information about past performance, there can be no learning. Though this essential role of feedback is a basic principle of psychology, it doesn’t yet seem widely understood or practiced in the software industry.

Feedback is built into many processes in life, especially those by which one attempts to manipulate the physical world. If I try to thread ...

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