I quite like this book but it is also a bit strange and very American. Requiring rooms kept to 64F (approx 17C) or less, and dedicating different areas throughout the home for different fermentation needs is a bit beyond the average home fermentista. Building rooms especially for fermentation (I kid you not).
Do fermenters in the US forget that there is a whole part of the world that has hot weather? And that some of those cuisines fermented a lot, and quite successfully (eg India, some African nations).
But this unassuming book (pic) I am quite enjoying. Recipes that are a bit different from the run-of-the-mill ones. Not as prescriptive. I haven't seen anything on temps yet, but no doubt will come across it. Also - British, not American. It makes a difference.