Just posted #007 in the classroom on line charts which can be found here. Starting with line charts, we'll soon jump into charts with 2 Y-Axes, Combo Charts that use multiple types (line, bar, bubble, area).
@Aaron Greeno Yeah definitely, I think my main issue is that I don't need to use excel for it a ton, so it's hard to solidify the ideas, but having these here and being able to reference them and see some deeper insights into it when I might need in the future is a lot of help.