A noble pastime, philately—or stamp collecting, as it is commonly known—involves the collection of postage stamps and envelopes, postal cards, letter sheets, postmarks, etc.
Simply put, philately encompasses the collection not only of stamps but also of all kinds of envelopes, postal cards, letter sheets, postage labels, indicia, postmarks, and other postal literature.
There are stamp markets in every major city in the world that regularly or occasionally auction, trade or sell philatelic items. Moreover, many public and private entities often sponsor stamp exhibitions of various types.