Book excerpt: Collecting stamps and coins - known to the world as philately and numismatics - are among the most enduring hobbies of all time, and this comprehensive guide helps explain why. It is both a stunning visual compendium that illustrates how these collectables have evolved, country-by-country, from their origins to the present day, as well as a practical guide to identification, categorization, care and assessing value. It contains expert practical advice on identifying key features, and determining condition and value, plus guidelines on competitive exhibiting or on-line trading. This is an essential companion for every collector and enthusiast.