Process Visual looks like one of the most promising and hardest-to-get-ahold-of corporate identity books. I have yet to obtain a copy but would absolutely enjoy having one. By the pictures I’ve come across, the book looks to cover a large part of the creative process and logo iterations prior to the final result. Six major projects were covered in the book all of which have interesting processes. The book was written by Wolfgang Schmittel and published by ABC Verlag—I believe in the ’70s-’80s.