Almanach De Gotha 2000: Reigning & Formerly Reigning Royal and Princely Houses of Europe and South America by Editor John Kennedy is a great, if not the best, reference guide to the reigning and formerly reigning houses of Europe and South America. This means you can easily check out why some people with titles are pictured in glossy magazines without having to ask someone else. Also, it is here where you can study the most important European royal families in detail. The book charts genealogical details of ruling and formerly ruling families including those from Austria, Bavaria, Belgium, Denmark, Great Britain, Greece, France, Monaco, Norway, the Netherlands, Russia, Spain, Sweden and many others.