I posted this to Reddit, and got lots of great suggestions. Posting this link here so I don't lose track of it.
You can also view the publication stats. Also, I now have a page of errata. (Although I'm not paying attention to sales statistics anymore, so that page is not being updated.)
Finally found the link (from 2 months ago!) where someone on Reddit recommended reading the man man page. Putting it here because I don't know where else to put it for now.