As you'd expect, the Letterform Archive has a lot of identity and brand guidelines. Many of these are not very glamorous, often simply presented in ring binders, but they are graphic design gold. On a recent visit I spent some time cataloguing them.
Here are a few highlights from these original IBM, NASA (see the book reissue) and Olivetti guidelines:
Here's a close up of Paul Rand's wonderful reference to Jan Tschichold on quality in the back of the IBM book.
