Dana's clear and illustrative use of language shines through this (and is immediately recognizable from Limits to Growth). Really outstanding short introduction to systems thinking, why systems surprise us, and why systems thinking is also no silver bullet for control of the complex systems that make up our world. The best (and final) chapters of this book are available online www.donellameadows.org/archives/leverage-points-places-to-intervene-in-a-system/ and www.donellameadows.org/dancing-with-systems/