Heraldic Badges in England and Wales [4 volume set]
Michael Powell Siddons (Wales Herald Extraordinary)
A four-volume survey of English medieval badges, by a man who should know whereof he writes. The set is a little pricey at US$695.00, but on the other hand, there is nothing else quite like it on available anywhere. (A.C. Fox-Davies’ Heraldic Badges is a nice introduction, but really isn’t much more than that.) More information can be found at http://www.boydell.co.uk/43834936.HTM, where you can also request to be notified when it becomes available.
The Herald in Late Medieval Europe
Edited by Katie Stevenson
A new study of the herald (rather than heraldry) in the Middle Ages, the articles in this compilation discuss the diverse roles and experiences of heralds in the late Middle Ages and cover a range of European regions: Florence, Scandinavia, Poland, the German Empire, the Burgundian Low Countries, Brittany, Scotland and England. More of a bargain that the above set on badges at US$95.00, information can be found at http://www.boydell.co.uk/43834820.HTM, where again you can also request to be notified when it becomes available.