This collection contains sources, bibliographical guides and reference works pertaining to the Crusader invasion of the Eastern Mediterranean and the subsequent history of the Latin Christian states established there. The bulk of this collection concentrates on the period between 1095 to 1291, with the bulk of the titles being devoted to the first four Crusades. There is also material on the later Crusades of the fourteenth and fifteenth centuries. Muslim, Eastern Christian and Latin perspectives are represented within the collection although the majority of the depictions of the campaigns come from Latin sources. There are also works on the crusading orders, such as the Knights Hospitaller, as well as a number of titles on the history of the islands of Malta and Cyprus.