I often have to draw charts if the data is unavailable to me to actually
graph it. (Although right now I'm working on some really nasty ones that
would take me longer to draw than to plot, so I'm using GrabIt to generate
the data from images. My copy is very old, so I can't tell you anything
about the current one. It seems very different now, though.)

I have a little tutorial on Bezier curves / edit points that should help get
you started. http://www.echosvoice.com/beziercurves.htm But I don't know of
anything specific to redrawing *charts* specifically. I mean, if it's a
column, a rectangle (on the drawing toolbar) will do what you need. You'll
want to become familiar with the align tools (Draw|Align and Distribute)
also, as they will be important when you draw charts. You can also tear away
and drag that Align and Distribute flyout menu onto your workspace -- or
tear it away from the menu and dock it with your other toolbars -- so it's
close at hand. (Just click the mouse on the dots at the top of the flyout
menu and drag to tear it away.)

Also, press the Shift button when drawing lines to create straight
gridlines/axes. You can use your guides (Alt+F9) to place items and help
space things out, and the aforementioned Distribute functions will help
there also. Press Ctrl while dragging a guide to create more guides. (You're
limited to 8 or 9.)

Oh, and clicking Ctrl while clicking and dragging an item creates a copy of
it. Press the Shift button along with Ctrl while you drag to create a copy
and constrain it to the same horizontal or vertical space.

Wow. I might actually be able to write up a real tutorial using this stuff
as a basis -- I had no idea I used so many "tricks" when drawing charts!