to learn

You will find a site which suggests learning free of charge a multitude of different things...

I found for you the general themes, it is impressive: surprised
Art, lifestyle, astronomy, biology, do-it-yourself, chemistry, cooking, economy-right(-law), electricity, environment, management, story of Paris, computing, gardening, games, foreign languages, math. Music, oenology, philosophy, physics, psychology, sports, thermodynamics,sail, journeys.school

 

You can also surf in "Gratuitsdunet" to find the other pages "learn" situated in various sections ...Clin d'œil
For example, in the section "foreign languages", we find: " learn german, spanish... '
In the section "music", we find: " learn the music theory, the piano, the guitar... "