The Left Hand of Darkness by Ursula K. Le Guin. First edition mass market paperback from Ace Books, 1969. The marvelous Klimtish cover is by Leo & Diane Dillon. I wrote about the novel here.
The Order of the Day by Marcio Souza. English translation by Thomas Colchie. First edition mass market trade paperback by Bard/Avon, 1986. No illustrator credited.
Neuromancer by William Gibson. 1988 mass market trade paperback by Ace Books. Cover art by Richard Berry. A friend foisted this on me; I never gave it back, which was wrong. I don’t think I can overstate how important this book (and the following two in the so-called “Sprawl Trilogy”) were to me in the late nineties. In fact, Gibson was one of the first things I wrote about on this blog. (Don’t click on that link; the early days of this blog were Bad).