Sunday is Monkey Covers day here at YACB. Because there's nothing better than a comic with a monkey on the cover!
Now that's what I want in my Jimmy Olsen comics: Jimmy facing off against a giant green ape! Brad Walker, John Livesay & Pete Pantazis do the honors on the cover to Action Comics #854 (2007).
(Standard disclaimer about giant Kryptonite-infused apes not really being monkeys applies.)
Image courtesy of the GCD. Click on the image for a larger version.