Thanks for the answers, I decided to start with SFML to get used to the usage of 2D graphics without
extraordinary hard 3D math stuff.
I looked a bit around and I found this book: http://www.amazon.com/SFML-Game-Development-Jan-Haller/dp/1849696845 (SFML Game Development).
Is this a good source to learn how to make 2D games (as I use books rather than sites, as books are most of the time good structured) or do you know
a better one?
Thanks