Superman's Pal, Jimmy Olsen #110

The cover of this April 1968 issue poses one of the Silver Age's most delightfully absurd questions right on its cover box: "How Can Jimmy Cut Superman's Indestructible Hair of Steel?" — and the image delivers a cheerful answer, showing a grinning Superman relaxed in a barber's chair, casually reading a copy of his own pal's comic, while a freckle-faced Jimmy Olsen stands behind him armed with scissors and a comb, looking confident despite the obvious challenge ahead. In a fun meta-touch, the comic Superman holds mirrors this very cover scene. Cover pencils by Curt Swan and inks by Neal Adams give the whole lighthearted scene a clean, warm energy that captures exactly why this series had such enduring charm in 1968.