Here’s my story… why I decided to start collecting coins, what I get out of it, and my tips for those looking for coin collecting information.
If damage happens to a coin before it leaves the Mint, then that coin is considered an error coin or a mistake. (On the other hand, if damage happens to a coin after it has left the US Mint facility is considered 'damaged' and it is generally worth very little.) Error coins are rare and valuable because they are legit -- they entered circulation that way and are relatively few in number. Here's a list of well-known U.S. coin errors, how to determine a true error coin from a fake one, the most valuable error coins to look for, and how to spot new errors on coins -- because new errors are being discovered all the time!
Presidential Dollar coins were struck from 2007 to 2016. Each $1 coin features the face of a former U.S. president. Four coins came out each year until all former presidents (non-living) were minted on these golden-colored U.S. $1 coins. Another related presidential coin set called the First Spouse gold coins program ran from 2007 to 2016, as well. These $10 gold coins were released concurrently — at the same time as their husband’s President coin.
There are several coin price guides made by different companies, but I mostly use the Red Book and the Black Book. Here are some tips for choosing the right price guide for you coin collection.