The Steampunk Bible: An Illustrated Guide to the World of Imaginary Airships, Corsets and Goggles, Mad Scientists, and Strange Literature (2012) ... Jeff Vandermeer & S. J. Chambers

I must admit when I bought this I thought there would be more about the Steampunk authors and the literary movement. Instead it turned out to be more about the "aesthetic": waistcoats and goggles and top-hats and gears pasted onto everything. Not quite what I really wanted.