Mentality Studies. Survey of past and current research
Handbook of medieval studies : terms, methods, trends
Contains information about research in medieval studies and its most important results over the years.
Matthews, Jeffrey J., "Introduction: Leadership in War and Peace", in "The art of command: military leadership from George Washington to Colin Powell." Lexington, Ky: University Press of Kentucky, Laver, Harry S., and Jeffrey J. Matthews. 2008.