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The Transformers, the monthly comic book published in the U.S. by Marvel Comics, was the very first original fiction to feature the famous robots in disguise, as well as the longest-running. It started life as a four-issue, bimonthly limited series in 1984, but proved so popular that it continued publication as an ongoing monthly until spring of 1991. The series ultimately reached 80 issues and spun off several miniseries. https://tfwiki.net/wiki/The_Transformers_(Marvel_comic)