human
I'm a little confused about the different types of gold coins. How can I learn more about them?
assistant
The most common type of gold coin is the gold bullion coin, which is made of pure gold and has no value other than its precious metal content. It is typically minted in various weights and sizes and is often sold at a premium over spot price. Other forms of gold coins include collector coins, proof sets, and commemorative coins. Collector coins are generally valued for their rarity and condition, while proof sets and commemoratives may be valuable due to their design or historical significance. To learn more about these coins, you should research online resources such as numismatic websites, coin collecting forums, or books on the subject.