Philatelic literature is written material relating to philately, primarily information about postage stamps and postal history.
Philatelic literature is held by stamp collectors and dealers, philatelic societies, and general and specialist libraries. The holdings of the British Library, for instance, are estimated at 30-35,000 works.
Philatelic literature is generally divided into the following categories:
Perhaps the most basic sort of literature is the stamp catalogue. This is basically a list of types of postage stamps along with their market values.
The first stamp catalogue was published in France by Oscar Berger-Levrault on 17 September 1861 and the first illustrated catalogue by Alfred Potiquet in December 1861 (based on the earlier work).
The first catalogues in Great Britain were published in 1862 by Frederick Booty,Mount Brown, and Dr. John Edward Gray. The first in the United States was The Stamp Collector's Manual by A.C. Kline (a pseudonym for John William Kline), also 1862.
Some catalogues, like the Michel catalogue and various one-country catalogues, offer a great deal of information going beyond the basic properties of each stamp type.
Another common sort of book is the comprehensive "Stamps and Postal History" of a single country. These go beyond the basic date, denomination, and market price seen in the catalogues, explaining why particular stamps were issued, where and how they used, and more generally how the country's postal system worked in various periods.
The next level of specialization is remarkable both for the level of minutiae and the number of works that have been published. Specialists write monographs summarizing everything that is known about a single type of stamp - the history of its design, the printing process, when and where the stamp was sold to the public, and all the ways it was used on mail. If the stamps is particularly rare (the Inverted Jenny or the missionary stamps of Hawaii), the book may actually include a census of every single copy known to exist. As might be expected, the audience is small, and the print runs of these books are small too. Classic works out of print may be much-sought-after, sometimes even more than the stamps they are describing!