Help needed to get learning on Exchange 2013

Hi All,

I am looing to learn Exchange 2013, by deploying it onto my physical servers as VMs. This won't be a production environment in that it won' t be used by anyone but me but I would like to do a production-like deployment.

For learning purposes, what is the minimum no of servers required? I have my AD forests ready and functioning with no issues. I know I will need SQL Server, too.

Also, is there a glossary to get to grips with terms like Mail flow and mailboxes?

Thanks