Yes, more Superman!
They just don't make comics like this anymore, where you have your hero dressed as an Indian Chief, a genie, a weird Flash/Superman hybrid...basically looking like a total goof. Hmm, maybe not everything from the Silver Age of Comics was great.
Ah, enough negativity! Let's get on with the super-riffic content:
• "The Five Other Identities of Superman" (oddly, it was originally published as "The Day Superman Became the Flash"...I wonder why the tacked-on title change?) by Edmond Hamilton and Al Plastino
• "The 1,000 Lives of Superman" by ? and Wayne Boring
• "From Riches to Rags!" by Leo Dorfman and Plastino
• "The Super-Genie of Metropolis" by Robert Bernstein and Plastino
• "Blind Clark Kent!" by Jerry Siegel, Curt Swan, and George Klein
• "Clark The 'K'" by Siegel, Swan, and Klein (a pretty obscure reference, if you think about it)
• "The Super-Cop of Metropolis" by Siegel, Swan, and Klein
• "The Shocking Secret of Super-X!" by Bates, Swan, and Anderson
• "Who Stole My Superpowers?" by Jim Shooter, Swan, and George Roussos
• ...and the text-feature "Does Superman Need Clark Kent?" by ENB. (I bet the answer is yes!)
The most interesting tale is the first I think, where Superman gets to see what its like to be Batman, The Flash, The Atom, Aquaman, and Green Arrow! I guess the Comics Code would've prevented him from being Wonder Woman for a day...