The contents include day-to-day skills such as how to besiege a castle, fire a longbow, correctly clean a maxim machine gun and capture an enemy trench; sporting sciences such as jousting, fencing and boxing (Queensbury Rules, of course); and domestic essentials such as how to hunt, kill, clean and cook a wild boar. Airmen and soldiers, knights and pages, gentlemen and rogues: to you we say pip pip, and what what! Stiffen your lip and tighten your sword belt! Tie down your trebuchets, wax your moustache, and delve into this manliest of manuals.