Found in 3 comments on Hacker News
palashkulsh · 2022-08-20 · Original thread
Thanks for the suggestion. will definitely give it a try. I really liked guesstimation too. https://www.amazon.in/Guesstimation-Solving-World%60s-Proble...
mindcrime · 2020-03-10 · Original thread
There's this book I like called "Guesstimations in the back of a napkin" or something

This? https://www.amazon.com/Guesstimation-Solving-Worlds-Problems...

dedalus · 2009-11-15 · Original thread
I read http://www.amazon.com/Guesstimation-Solving-Worlds-Problems-... and the attached link delves into far greater theory than the book.

Thank you for sharing this with us :-)

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