There is a lot of fascinating insight in this one, including critical reflection and more honesty than I expected from a licensed book. A celebration of the artistry behind THR, but also a "making of" worth reading.
Iain, I respect you immensely, but please have another good long look at actual caterpillars. JABBA???
(The fun fact that they didn't mention here: Rose was the codename for Maz Kanata during the preproduction of TFA, and Maz also ended up in THR.)[
The chapter on the genesis of the Nameless design was very illuminating, and the concepts meandered between nightmarish and oddly cute. It took them a long time to finalise the design, but the one they arrived at truly is the best.
I really adore this book, but the number of typos, especially in character and artist names, really suggests a certain degree of sloppiness in the editing.