Cover art: Leigh Brackett's The Sword of Rhiannon

Here’s some cool cover art that you don’t see too often: the 1955 first hardcover edition and first English edition of The Sword of Rhiannon (1953), a classic Martian SF novel written by Leigh Brackett. According to the October 1997 issue of Firsts: The Books Collector’s Magazine, this edition, published by Boardman in London in 1955, is "the most elusive, expensive and highly prized book in the Brackett cannon." There's a copy selling for more than $800 on the rare and used book site AbeBooks.