I just attended an EXCELLENT FAA presentation. The presenter works for NACO -- the FAA's charting people. He did a 2.5-hour session on VFR charts, and it went by like 5 minutes' worth of time.
Here's their site:
www.naco.faa.govThese are the nice folks who draw up our sectionals, WACs and TACs, along with a lot of other valuable information. There's a lot of good stuff at that link -- hope you can use it.
Cheers,
S'Mom