While I was in Maine I discovered this book put together after the 1974 Biennale of Graphic Design in Brno, Czechoslovakia (now the Czech Republic and Slovakia). The book contains notes and essays from a symposium centered around corporate identity.
Wim Crouwel contributes an essay on the problems with house-style. In the essay he discusses the role of a designer in the creation of a corporate identity program and describes the difference between what he calls “information designers” and “advertising designers. He ends the essay off with a few thoughts on trademarks (abstract symbols vs type driven solutions).