Added a few pictures here and there to existing categories.

I added a few books about project management I personally read and can recommend. Many books have been written on this topic but not all of them are good. Those I posted are well known and standard literature. Some of them are even used at universities. Note that some of them contain basic information while others explore specific topics more detailled.

A new page concerning knowledge about project management has been added. Goal is to give an overview an quick access to further ressources.

This site has finally been shaped. Yet it still has to be finished and filled up with content. Stay tuned.