I have wanted to learn mechanics since I passed my driving license... a long time ago!

I like to go on road trips in foreign countries and would love to be able to fix the most simple problems myself. I do have a few notions already, but they are very limited. I'd like to learn as much as I can and if I have to take the car in a repair shop, I would like to be able to understand and check the problem dignosis... In other words, I'd like to know if I am being s...

My intention is not to pass an engineer degree at this point.

Any clue where to find mechanics lessons for the average?