Generally all of the resources shown on the various tabs in this guide can be used for finding information on footwear or shoes. However some of the more specific resources are listed below, for you to explore.
Books about the same subject are assigned the same shelfmark number. You'll find the number on the spine of each book. Here is a selection of shelfmarks for Footwear:
Footwear: Industry economics 338.476853
Footwear: Manufacturing 685.31