I've always liked the appearance of architectural drawings with thin white lineweights, so I came with the idea of making one in steel and plastic. In order to set thin 3D lettering on to a piece of steel and have durability, I cut out paths in the steel with a waterjet machine and inset the lettering.
The choice of the weathered steel and polished stainless was to make it look industrial, but sophisticated. The polished surface also created a reflection that made the shelves 'disappear'.
The text and drawings were copied from my personal notes during the course of building it. I wanted to build the entire unit first, then transcribe my notes on to it. It would be self-referential and pay homage to the process -- a perfect fit for a office full of Makers!