I love making-of books, so was overjoyed to find that one was available which covered the 2nd Trek film. It was published in October 1982.
My copy is from the first printing, and was purchased on 26 November 1982. Here's part of my diary entry for that date: "Today I bought The Making of Star Trek II: The Wrath of Khan which gives a detailed account of the stars and the movie itself. I spent 2 hours reading the entire book as soon as I got home. The book cost $7.95 for 222 pages, but it was a bit of a larger size and it contained some excellent black and white photos."