SFML is a simple, fast, cross-platform and object-oriented multimedia API. It provides access to windowing, graphics, audio and network. It is written in C++, and has bindings for various languages such as C, .Net, Ruby, Python.
Follow the instructions of the tutorials, there is one for each platform/compiler that SFML supports.
There are several places to learn SFML:
SFML is an open-source project, and it needs your help to go on growing and improving. If you want to get involved and suggest some additional features, file a bug report or submit a patch, please have a look at the contribution guidelines.