The guide is very easy to use once you work out how the references from the map relate to the book. A small knowledge of German would be handy but, if you have Satnav, all you need do to find a site is put the co-ordinates given in the entry into your Satnav, it works every time. Symbols, which are easy to recognise, show the facilities of each Stellplatz. Pity it's only for Germany!!