This book provides a clear and direct account of thermoregulation. The illustrations provide mostly pictures of the specific animals being discussed, and in a couple of places close-up cross-section diagrams of the anatomical processes (such as sweating). The illustration style is completely corresponding, with little to no complement, and no counterpoint. And the text offers me little more than I can find by looking up thermoregulation and following links to each of the types of animals being discussed. The strength is to put all of these animals together under this oft neglected subheading, which is an interesting one. And yet, where is the unifying narrative, the difficult question, the application to a problem, or something else to make me value this book above internet research?