Reading Ryan Singer’s Shape Up a few years ago was formative (or re-formative, or something) in my thinking on how product development can and should work. After that it was a rabbit hole on jobs-to-be-done, Bob Moesta’s Demand-Side Sales, demand thinking, and more.

Since he wrote the book in 2019, he talks about 2 new concepts that extend Shape Up a little further: the role of the “technical shaper”...