Sales Activity Report

Sales Activity Report

I am trying to create a sales activity report that shows calls, meetings, and emails sent sorted by user and then activity type. I can build a report that shows the calls and meetings, but can't include the emails. 

Can someone please walk me through how I can build a report that shows all three things: calls, meetings, and emails for last week without having to build individual reports? 

Thanks in advance!
Struggling Startup