Catalogues

Stamp catalogues are the primary tool used by serious collectors to organize their collections, and for the identification and valuation of stamps. Most stamp shops have stamp catalogues available for purchase. There are hundreds of different catalogues, most specialized to particular countries or periods. Several major catalogues have worldwide coverage:
Stanley Gibbons (Britain)
Scott (USA)
Michel (Germany)
Yvert (France)
Other catalogues focus on individual countries or regions, or specialized types of stamps:
ACS Colour Catalogue - this 2007 30th edition catalogue is published by Auckland City Stamps, Auckland, NZ, covers New Zealand stamps issued from 1855 to 2007. It is also available in an online edition. [1]
Australasian Stamp Catalogue - a single volume basic catalogue for Australia and its territories published by Seven Seas Stamps
Australian Commonwealth Specialists' Catalogue - a nine volume specialist catalogue published by Brusden White
Campbell Paterson's Catalogue of New Zealand Stamps
Darnell Stamps of Canada Catalogue
Phila India Guide Book - this 2005 13th edition full colour catalogue published by Phila India, Kolkata, India, covers Indian stamps issued from 1800 to 2004. It does not cover the Princely states. [2][3]
Unitrade Specialized Catalogue of Canadian Stamps
State Revenue Stamps Catalog, published by the State Revenue Society, and edited by Scott Troutman
Additionally, certain organizations, namely Lion's Club and Rotary International (Rotary-on Stamps), have had such pervasive influence and exposure in many countries that countries have issued stamps bearing the logos of the respective organizations. For instance, Rotary International's Rotary-on-Stamps can be found issued from hundreds of countries with key collectibles from countries such as Austria, Korea and Cuba, dating as far back as the 1930's.