In our class on Sales, we get some practice describing visuals in a presentation or meeting, like charts & graphs that show what is happening with our sales: movements and trends like rising, plunging, fluctuating and remaining steady.
Here are some podcasts about this topic. The audio is free, although you might have to pay for extra resources like transcripts etc.
ESL Pod: intermediate level
Business English Pod: Upper-Intermediate to advanced level
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.