Dr. Michael J. Vassallo is a noted historian on Marvel's early pulp, Timely and Atlas periods. A Manhattan dentist, he spends his free time attempting to bring recognition to artistic creators of the 1940's and 1950's. He has also written introductions to 20 Timely and Atlas Masterworks volumes, dissecting the credits for posterity and providing historical context, as well as writing the detailed captions to the first 210 pages of Taschen's 75 Years of Marvel coffee table book. He lives in Westchester County, New York.