This category is about collecting coins (numismatics) which are from Ancient civilizations. Ancient is usually defined as prior to the fall of the Roman Empire (476 AD). Included in this category is information about the acquisition, display, identification, and conservation of coins.

The Coin shows category provides listings of permanent coin show which occur at a regular interval and sites which list coin shows.

This category is for personal, non-commercial pages of collectors who present their collections and/or their trade lists.

Elongated coins (also known as pressed, squished, rolled, or smashed) are created by rolling a coin through a pressing machine. They are imprinted on one or both sides with an image or text. Elongated coins make great souvenirs because they're inexpensive and fun to trade.

Error coins are those coins which during the manufacturing process were improperly formed or stamped. These coins include but are not limited to double dies, cuds, mules, wrong planchet or material errors. Sites in this category provide information about collecting, identifying and authentication of error coins.

Grading of coins is a very subjective process. This category provides links to coin grading services and information about coin grading. Coin Grading services provide expert grading of coins for a fee and return the coin encapsulated in a plastic holder to protect it from damage. The holder or slab as they are known will list the coin, date, mint mark and grade for the coin. Coin grading services utilize a scale of 1 to 70, with MS (mint state) 70 being a perfect coin.

Sites featuring EXONUMIA: defined as tokens, medals, badges and other related items. The word 'exonumia' is derived from two classical roots: 'exo-', or 'out-of', and 'numis', a coin, so exonumia refers to coin-like objects, but not coins. Tokens are generally issued in place of currency and possess some monetary or trade value. They were originally issued because the government could not produce enough small change to meet the needs of trade. Now many are produced as promotional items or to control cash/currency flow. They are used in casinos, video game parlors, bus companies, etc. Medals are generally issued to commemorate an event or person, and are not designed to circulate. Although exonumia covers a wide area, this topic is limited. Military medals are under the area of Orders and Decorations. Casino and gaming chips also have their own area.

This category is about Manufacturers of coins and medals. Official (government) mints are listed in this category, private mints are listed in the subcategory "Private Mints".

Organizations, dealers, and individuals with an interest in numismatic literature - books, periodicals, catalogs and other material relating to coins, medals, tokens, or paper money of the world.

Organizations which promote coin collecting are listed here. The category is broken down by regions.

This category contains sites that provide country-specific information about modern world coins.