Sid Sackson was among the first game creators to begin thinking about games as works of design. He created some of the earliest Eurogames and was among the few full-time freelance game designers in the 1960s and 70s.
My thesis research at the NYU Game Center focused on Sackson's contribution to games as well as looking at what games looked like in the mid-20th Century. What I discovered was the beginning of games being made for adults.
I have given talks about Sackson at the NYU Game Center, the East Coast Games Conference in Raleigh, North Carolina, and will soon be speaking at the Games History Symposium in Montreal, CA. My thesis is available upon request.