For a great read on general swordplay, check out "By the Sword" by Richard Cohen. He's a 5 time U.K. national Sabre champ and competed in the 70's and 80's on the British olympic fencing team. Fantastic history of the sword and it's relevance on the battlefield, from Europe to the Asias to the Americas. He relates sword customs of the past into today's traditions (ie. shaking hands signifies NOT reaching for your sword...military salutes stem from European Knights opening the visor of their helmet as a display of respect etc.)
Also recommend Darrell Craig's "The Heart of Kendo" and "Iai" for some technical reads on Japanese swordsmanship. I especially enjoy the discussions on the 4 weaknesses of the sword...doubt, fear, confusion and surprise. :hypnotysed: