I would second the black bar for Kidder -- The Soul of a New Machine constitutes the literary foundation of our craft: it is our Odyssey. Speaking personally, I have spoken and written about Soul many times ([0][1][2]) -- and I know that its impact from me is far from unique.

RIP Tracy Kidder -- and thank you for giving us all permission to feel passion for the machine.

[0] https://speakerdeck.com/bcantrill/oral-tradition-in-software...

[1] https://bcantrill.dtrace.org/2019/02/10/reflecting-on-the-so...

[2] https://bcantrill.dtrace.org/2019/12/02/the-soul-of-a-new-co...