I bought this book back in college when taking stagecraft. I still look through it and refer to it every now and again when doing woodworking projects at home. For a do-it-yourself person this book has a lot of useful shop math, sizes of stock nuts/bolts, strength and properties of various materials like canvas or rope, diagrams of wood joints, doors, chairs and ramps, and loads of tool and fastener drawings.
It won’t tell you how to build a chair or use a fastener, but it will help you identify things quickly. It is a fine reference and everyone I show it to is blown away at the amount of information it holds.
Image via flickr/hodgepodge