A collection of essays on how Tolkien wrote. From his blog, on which yours truly is a reader and commenter, revising.
It touches on his inspirations, and on how he used language to distinguish. Essays apiece on how he treated elves, and the problem of orcs (noting that in real life, there really are people with as little conscience -- we call them sociopaths), and the treatment of dragons in his sources and what he made of them.
One on Moorcock's essay on humor in fantasy because that essay treats heavily with Tolkien. A review of The Children of Hurin Interesting stuff.