Speaking of classic comics art, here are some great examples by one of the field's finest: Steve Ditko.  The third volume in the Ditko seriers, which is itself subset of a larger ongoing project by Greg Theakston and Pure Imagination to collect the best comics of the forties and fifties by the greatest creators of those times, including, in addition to Steve Ditko, Jack Kirby, Alex Toth, Basil Wolverton, Wally Wood, and more to come.  To learn more, visit our Pure Imagination Page.