Courage Remembered. The Story Behind the Construction and Maintenance of the Commonwealth's Military Cemeteries and Memorials of the Wars of 1914 - 1918 and 1939 - 1945.

This book is exactly what the title says, but it is more than that. It is a compendium of CWGC sites around the world, and is full of all sorts of miscellaneous information. It is valuable both as a reference book and also as an interesting book to browse through.