I just found out about The ZX Spectrum Book - 1982 to 199x, a book about the greatest 80s home computer of all time, the Sinclair ZX Spectrum. Which, incidentally, was my first computer at age 13.
The book seems to consist entirely of descriptions of the great games that were released on this platform. Even though I can read about (and even download and play) these games on the web and I would have loved to have seen more than just game descriptions, I feel compelled to buy this book.
It was written by Andrew Rollings and published by the enigmatic Hiive Books. Enigmatic because the link from Andrew's bio is broken and the main page only contains a logo. But that may be because Hiive Books is apparently just Andrew. Regardless: self-publishing is great, and book like this are a great business idea. Go Andrew!
(The poor, deluded souls who spent the 80s trying to have fun with Commodore 64s, permanently stunting their intellectual growth in the progress, may be interested in The C64 Book - 1982 to 199x.)