Bill Atkinson was Apple Computer’s main developer of the user interface that first appeared on the Lisa and later on the Mac. A passionate photographer, Atkinson had the foresight in the late ’70s and early ’80s to document his UI work for Apple in a series of Polaroids. The photos were published by another Mac pioneer, Andy Hertzfeld, in his book ‘Revolution in the Valley: The Insanely Great Story of How the Mac Was Made’. Through Hertzfeld, Atkinson permitted CNET News.com to reprint the photos. Similar shots here.