SUMPLY is a Typeface born to used in layers. The idea was to create a typeface that could design materials by itself, only by using personalization and digital printing. Get it here.
KARL-ERNST is the main design tool of Odyssey of the Mind Deutschland, based on a few basic shapes, it lives from being used with contextual alternates. Every letter has at least three Alternatives.
CIRCUIT is my first typeface and it was born by thinking of wirehangers and electrical circuits. It is very light and has some nice ligatures.