This volume is probably destined to be the ‘go-to’ standard work for European ring-mail armour. The book (the product of Wijnhoven’s doctoral thesis) contains a wealth of material. It is intelligently assembled and supported by much gathered evidence. If you want to know anything about mail armour, I suggest that it is likely to be found within these covers. The work is extensively illustrated, both with photographic and computer-generated figures. The latter are particularly important as they demonstrate, in an ‘exploded’ format, very clearly how the rings of the armour were joined together. There are also numbers of maps, showing the distribution of finds of mail armour fragments.