Kelly Robert DeVries & Robert Douglas Smith 
Medieval Military Technology, Second Edition [PDF ebook] 

First published in 1992, Medieval Military Technology has become the definitive book in its field, garnering much praise and a large readership. This thorough update of a classic book, regarded as both an excellent overview and an important piece of scholarship, includes fully revised content, new sections on the use of horses, handguns, incendiary weapons, and siege engines, and eighteen new illustrations. The four key organizing sections of the book still remain: arms and armor, artillery, fortifications, and warships. Throughout, the authors connect these technologies to broader themes and developments in medieval society as well as to current scholarly and curatorial controversies.