There are many different kinds of visuals we can use in presentations, especially different kinds of graphs & charts. But I didn't realize just how many until I saw this page for a program, called SmartDraw, for making visuals. They claim their software can produce 70 types!
Click on the menu on the left of their page to see more on the different types of visuals.
G.A.L.E.S.L. / joe3
Some tips and links on learning English.