This is the next book in the Caltech book club. I, admittedly, skipped over the biological sciences when I was at Caltech, and that skipping is one of my regrets about my time at Caltech: I came in with these just plain wrong notions about science. Those ideas adversely affected my education, but, fortunately, not my love for science in all its (correctly science) forms.
Anyway.
I read this book, finishing before the first week's discussion, mostly because I keep checking these books out from the library, with due dates much sooner than the slower 1-2 chapters a week pace the book club has. Which is fine, I read the book club books quickly. That I subsequently don't participate in the book club discussions is less fine, I guess.
This book was a meandering survey of various studies, current research, and microbe history. I say meandering because the book lacked a compelling narrative arc. I was expecting maybe a history arc, or a current research arc, or even the author's journey arc. Instead, the end of each chapter lead into the beginning of the next chapter, with each chapter a swirl of interesting information and sometimes a self-contained narrative. Mostly though, each chapter was a fascinating, meandering discussion of a new topic about microbes.
And by fascinating, I mean fascinating. My incoming supposition was, given how much influence chemicals have over our mental state and body composition, the idea that microbes could and do produce chemicals to induce a state in their host doesn't seem so farfetched. After reading the book, learning about how much we know about microbes, and seeing how much we don't know about microbes, my supposition is more like a fixed assumption in my world. One of those "but, of course" obvious things only after the fact.