The Scott catalogue of postage stamps, published by Scott Stamp LLC, is updated annually and lists all the stamps of the world that its editors recognize as issued for postal purposes. It is published
Cover of the first Scott catalog, 1868
A small excerpt from 1910s Bolivia; each stamp includes the Scott number, design, denomination, color, unused and used prices, and additional annotations as needed. As the "1917" appearing before "1913" suggests, related stamps are sometimes grouped logically rather than numbered strictly chronologically.
Scott Stamp & Coin Company, 1893
Covers of the 2002 edition featured art on stamps
A stamp catalog is a catalog of postage stamp types with descriptions and prices.
Catalogs from the Michel range
First original American stamp catalog