W, B. Bartlett has written extensively on aspects of medieval warfare from the Vikings to the Crusades, amongst several other key events from the period. His 'Agincourt: Henry V, the Man-at-Arms & The Archer', which was published by Amberley, re-explored the iconic battle. In the process of researching this, he became aware of how many unanswered questions remained after the battle, leading to the writing of 'After Agincourt'.