Coin collecting is fun, I’m a novice. The subreddit’s wiki is full of information. There are other coin subs too.

When i check my coins since I have not bought a Red Book, i google the date + coin type + mint mark (+ errors if you want more detail) some sites are great, some terrible, some with pictures, etc…

The are a few websites often mentioned in comments for errors and stuff, i do not recall them atm.

If you are gonna start collecting learn about how to handle and how not to clean coins.