Inspired by the excellence of Sam Moskowitz’s boots-on-the-ground 1964 biographical article on Virgil Finlay, mentioned here in an earlier post, I went looking to see if he had collected more such articles on artists into a book. It seems not, but Archive.org has the 1974 reprint of his earlier Immortal Storm: A History of Science Fiction Fandom (1954).
Also noted, the last issue of Spicy Armadillo Stories #7 (August 1992), themed “How the Pulps Worked”. Includes “Teaching Pulp Magazine Writing” by Sam Moskowitz. Seems to be totally unavailable today, but a $3 Kindle edition might get some interest re: the growing interest in the pulps among business historians.
There’s a more recent collection on how the pulps worked, albeit only from the point of view of the writers and probably mostly talking about story mechanics. The Penny-a-Word Brigade (2017) is from the makers of The Blood ‘n’ Thunder Guide to Pulp Fiction (2018, revised edition).