I found Thinking in Systems (Amazon) via @jessitron’s excellent post Systems Thinking about WIT. I had been aware of some of the concepts of systems thinking for a while, but it was great to have a book that really explained it.
I really enjoyed it. It articulated things that I intuitively understood but couldn’t explain, but also covered things that I didn’t – like the way that trying to influence a system can backfire. Do you try and exert force on the thing you want to change? Or on the things that result in that thing. Also, trivia! Jimmy Carter was a systems thinker, and wanted to not invest in border control with Mexico but on boosting the Mexican economy until there was no longer such a differential between them.
It’s a relatively short book, and written in a readable way. I got a lot out of it, and I definitely recommend it.