Peter van der Linden wrote this short side-bar about Alan Kay in one of his "Just Java" books: "Teach yourself OOP the hard way - Alan Kay, an OO expert [...]

Peter van der Linden wrote this short side-bar about Alan Kay in one of his "Just Java" books: "Teach yourself OOP the hard way - Alan Kay, an OO expert [...] began studying the topic in the early 1970s. He was leafing through eighty pages of Simula-67 listing. Simula was the first OO language, but Alan hadn't seen it before and didn't know that. He thought it was Algol or an Algol-variant. He literally taught himself the principles of OOP from reading eighty pages of code in the first object-oriented language." For those that don't know, I couldn't help but notice that the cover art for Early History of Smalltalk is a painting by Alex Grey [1] entitled Net of Being [2]. [1] https://en.wikipedia.org/wiki/Alex_Grey https://en.wikipedia.org/wiki/Alex_Grey [2] http://alexgrey.com/art/paintings/soul/net-of-being http://alexgrey.com/art/paintings/soul/net-of-being