I recently finished the book 'Medieval Handgonnes' by Sean McLachlan (Osprey, 2010). From a layman's perspective, I thought this book did a decent job of introducing the development of handheld firearms during that period and covered not just their historical uses but also quite a bit of the technical details on the guns themselves, all supplemented by period and modern illustrations which helped me gain a better understanding of the weapons. I'd now like to find some similar reading material that covers European handheld firearms during the 16th century. In particular I'm interested in the western European realms (England, France, Spain, Portugal) and the Italian states. Any recommendations?