What book* had the most influence on how you manage?

*or other media; video, article, etc.

The Phoenix Project (and The Unicorn Project) by Gene Kim really opened my eyes up as an engineer and made me feel like I could start fixing the problems I was seeing on my team, on my project, and in my organization.

I started reading The Manager's Path by Camille Fournier and have really appreciated how straightforward and relevant it is.

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