The School of Design of the Polytechnic University of Hong Kong will be moving to a new building, the Innovation Tower. Students are required to design an wayfinding system for it, as the assigment of our information design subject. The design includes two major parts, pictogram design and signage design. The designs are inspired by the building structure itself: irregular shape and multiple strips surrounding the building. I outlined the building and formed a grid based on the major slopes of the building. Some of the them were fully generated by the grid; while some of them were just preserving the slope feature.