Here are several posters I designed for the Amnesty International's Film Club in Prague.

 

They are very simply, only using black and white. I always tried to create an image that would represent what the documentary film is about. That was often a challenge, because the issues are often very dramatic and difficult to portrait. 

 

Working for Amnesty International was without any doubt a wonderful experience for me; I was able to start as a graphic designer and improve my skills, and at the same time to support something meaningful.