This is a gem of a guide which can be slipped in the pocket whenever you go for a walk and hardly noticed, yet it details all the 350 birds likely to be encountered in Britain and North West Europe, mostly in good detail. The illustrations are superb, with pictures of adult and immature plumages, birds in flight and so on, wherever they would be useful. The pointers to the identification and separation of similar species are also excellent.
The species are in some sort of appearance order rather than evolutionary order, presumably to help novices, but together with the bizarre decision to omit latin nomenclature this makes the book seem less of a serious guide than it actually is. The other significant fault with the book is the lack of distribution maps, though this is understandable given the limited space available.