How do I read an account statement letter from Charles Schwab?(noobie)

my mom has some stock in a company she left and she got a letter in the mail about account summary. I’m not sure how to read it and neither does she!

What’s stock summary? Opening, closing, closing share price, closing value.

What’s cash summary? Opening, closing, closing value.

Total?

I tried looking it up but nothing looks like this paper.