This is a compact, authorative yet concise account of the land mammals of Europe (and beyond...). It has been formatted in a way similar to many bird guides and so has detailed, punchy text and a map opposite a drawn picture or two of the species. For some species, there is good information on footprints, skull morphology and dentition. There are surprisingly good notes on causes of death, including diseases.
Unfortunately, for UK users the book seems written for the European market and so is poorly targeted for us. The species selected for inclusion works against the interests of the reader. For example, there are mammals from the very edges of the Western Palearctic range: Serval, Giant mole-rat, Siberian weasel and Saiga. There are 9 double pages of gerbils yet no whales and dolphins at all! This is a stunning omission in my view which may be OK for central European readers but if you live on the Atlantic fringes, you want a book on European mammals to contain at least the common cetaceans.
The other drawbacks:
The text needs better English editing as some of the phrasing sounds like a translation. European names creep in eg. a moose is a moose not an "elk".
The quality of the species drawings are variable: I think the jizz of the wildcat, pine marten, bank vole and hedgehog just feels wrong. Photographs would have worked better.
Many of the distribution maps (for the UK at least) are also way out of date, even when you take into account the 2009 publication date (red squirrel, wildcat, pine marten and wild boar).
So in the end it's OK but if you want a better UK mammal guide, there are many others out there.