Illustrated: 96 pages of full-color illustrations make identification a snap. Includes all U.S. stamps: Revenues * stock transfers * hunting permit stamps *mint sheets *commemoratives *airmails *first-day covers *error stamps * oddities *and much more. Scott Nubering System: All stamps are listed according to this universally recognized number system used by everyone in the industry. Stamp Associations and Stamp Clubs: Find others who enjoy your hobby and share information on buying and selling stamps. Trust the experts' Professional advice: Important tips on grading, buying, selling, storing, and caring for your collection.