Types of audits

Hi, I know there are 3 kinds of audits

1. Financial audit

2. operational audit

3. Compliance audit

I only know financial audit, but can you give please explain what an operational audit and a compliance audit is and providee an example of both?

Also please provide an example of assurance vs attestation. I know attestation has something to do with a third party, but I'm not sure what.

thank you!