Not as well known as some author's Harry Harrsion passed away yesterday. He was best know for writing the short story Soylent Green was based on called: "Make room, Make room". He was also the created of the Stainless Steel Rat books and Bill the Galactic Hero.
One of my personal favorites was "Technicolor Time Machine" in which a film maker doesn't have the money to make the movie he wants but goes back in time to shoot his epic. (very funny)
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R.I.P. Harry Harrison, creator of the Stainless Steel Rat, Bill the Galactic Hero, and Soylent Green