I swear, it was just by chance that these two wallpapers came up at the same time, but it's a happy-chance. Both are from Cory Doctorow books. The Dave McKean is the cover to Someone Comes to Town
and Pablo Defendini's is the artwork from a silkscreen inspired by Little Brother. After you grab the wallpaper on Tor.com, check out the awesome book binding job that Abi Sutherland did from Pablo's missprints. I'm loving the trail of creativity that's coming off this book. (I've talked a few Tor-ites into a t-shirt printing party, inspired by seeing Cory's Instructables...I'll post pictures, assuming we all don't get fired for covering the conference room in ink.)