For some the notion of a Workshop on Crusader logistics has seemed a narrow subject for which it is assumed that sources are lacking. The general assumption underlying such views is that it is possible to make something of logistics only occasionally, particularly for the later Crusades but not for the earlier ones. These are not unreasonable attitudes in view of the limited literature currently available on the subject and, indeed, on medieval military logistics in general. However, this is far from to justify such comments. Military logistics is a vital subject which was drawn firmly to my attention when I was writing about the First Crusade, whose journey was powerfully influenced by needs of supply.2 On this occasion I have turned to the Second Crusade, which is of particular interest for several reasons.