If it's reading and use of
charts for sailing, then you could check out online courses offered in
navigation. A lot of them base their courses on
learning charts (centered on
East Coast of the US). They'll walk you through all the basics - reading a chart, plotting a course, taking bearings, etc. At the end you'll take a test to confirm knowledge. I took an online course for this and got a lot out of it.
YouTube is also filled with videos from online courses with details on reading and using charts.
App-wise... once I started using apps, I felt there was little need to think about or look at the paper charts. Still keep them on the
boat, but only use them for large scale trip prep... and would use them if something went wrong with the device/apps.
Plenty of real-world schools offer
ASA (and other organization)
certification in various use of charts, cruising, going
offshore, etc.
For all of this,
Google is your friend. I'd name the online course I used, but I think it's against the policies of the forum.
Just a thought, but always kept a Coast Pilot aboard! Only really helps if ya can see the coast line with Binoculars, but really helps when you are heading for a anchorage or such. We carried one's from the 
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