I too write FP code but I found this book very valuable in how he treats complexity and his concept of "deep modules".
I acknowledge that he does not cover purity and mutations as a source of complexity (and they are big sources of complexity) but I don't think that merits dismissing the entire book on those grounds.
I acknowledge that he does not cover purity and mutations as a source of complexity (and they are big sources of complexity) but I don't think that merits dismissing the entire book on those grounds.