Complexity: A Guided Tour   Melanie Mitchell
Interesting book about complex systems even though the author is unable to come up with a definition of complexity or even a way to measure it. She says, though, that “modern complex systems science is… still not a unified whole but rather a collection of disparate parts with some overlapping concepts”, at least as of 2009 when the book was published. Found the fact that human metabolism and the immune system are complex, self-organizing systems most fascinating. Really enjoyed the sections on networks and evo-devo (evolutionary development). Found the idea fascinating. Overall, good, glad I read it.