I have a sneaking suspicion that this 512 page Encyclopedia of Knives, Swords, Spears & Daggers, by Harvey J S Withers and Tobias Capwell, is a combined omnibus of the 256 page Encyclopedia of Swords and Sabers, by Withers,
and the 256 page Encyclopedia of Knives, Daggers & Bayonets, by Capwell,
which are by the same publisher, in the same "The Illustrated Encyclopedia of..." series format.
If so, it is a good bargain for readers who do not have one (let alone both) of the previous works, but without much value for those of us who do.
I am tentatively rating it four stars on that presumption, until or if I discover differently.
For those unfamiliar with the two books in question, they are both gorgeous, fully color photo illustrated surveys, great for beginners or non-specialist collectors, but not to be regarded as tours de force as either scholarly works or collector's guides.