08:01 am Marc Cushman is writing a series of books using various paperwork from the business end of Star Trek detailing production issues from the original series. I finished reading the second book, called These Are the Voyages: TOS: Season Two.
There's a lot of detail here, including a lot of material about the folks behind the scenes. As was the first book, I found this one filled with details that I hadn't known about the show. Very nice read for anyone interested in what goes on behind the scenes to make what they film possible.