David Sears' guide to the Byzantine coinage is an absolute must-have for anyone with an interest in the series. There are many books on Byzantine coins, but most are very specialised with a hefty price tag. Sears' book is the only one that covers the entire series in a single volume and is essentially complete. Apart from a few exceptionally rare coins, every Byzantine coin is described here. Sadly, the book has been out of print for about 20 years, but second-hand copies can still be found. If you have an interest in Byzantine coins, especially if you are a collector, then don't hesitate, just buy this book.