RED MARS was first published in September 1992 (HarperCollins, UK) and received a wider release in February 1993 (Bantam Spectra, USA), thus beginning the release of the MARS trilogy.

2312, a novel reimagining a future like that of that trilogy and extending it further in time, was released nearly exactly 20 years later: May 2012 for the hardcover, and the paperback is coming in Summer 2013!

To celebrate this anniversary, Ludovic Celle has created the montage below! You can find a higher definition version of that image here, or on Ludovic's Da Vinci Mars Design blog.