Well worth seeking out on ebay are a collection of original paperbacks by the magnificent, much missed Don Martin. As well as seemingly endless reprint collections, ( The Bedside Mad, The Cuckoo Mad, Steaming Mad etc etc. ) Mad also gave Don the opportunity to tell all-new, longer stories than the one or two pages he got to himself in the regular mag.
Don's book's also had brilliant titles and covers, like:
And just like the rest of us, Don loved superheroes, and couldn't resist doing one of his own. The Mad Adventures Of Captain Klutz came out in 1974, and is every bit as lovingly caustic and hilarious as you'd expect. Here's Klutz's awesome, pulse-pounding origin: