Prog magazine revealed via their Facebook page earlier today the cover of their next issue featuring the 100 Greatest Prog Albums Of All Time as chosen by their readers and a number of prog-rock artists. The covers of Rush's Hemispheres, 2112 and Moving Pictures albums are all pictured in the album cover collage artwork gracing the cover. The issue will start hitting newsstands this coming Wednesday, August 6th. Thanks to Power Windows for the heads up.