I have done this type with Kanda Rahamou. 
We decide to start from logotypes letter, and to go to the beginning of logotypes, the "skeleton". 
We had to choose logo really recognizable, or at least with a particulary forme. Some letter was difficult to find, like the "U", because no U was enough interesting (we finaly choose "Unesco").
We also did a little book of it, with a few brand slogan. 
We voluntarily didn't written the name of the brand.
SLOGO
Published:

SLOGO

Slogo typograpy

Published: