We took this book on a bird watching holiday to various parts of Scotland. The information given about some sites was sometimes out of date or we could not find the site. Many of the "Additional sites" were not known either to local people or to staff in the Visitors' information Centers. It is advertised as 4th edition 2002 but revision did not seem to have been very thorough. The other problem is that there is no overall index to places. The arrangement into Regions is fine but difficult to use if you don't know Scotland very well. The details on each site is good and includes Habitat, Access and names of species seen there at various time of the year. It did sometimes turn out to be rather over optimistic and we often travelled many miles only to find a few gulls and crows. Better than nothing but rather disappointing and if only we had had access to the internet!