Biography and concepts of Karl Marx

I know it can be reached easily Marx's biography on the internet, but I found a website which both includes a short video about his whole life and his biography that is written in a detailed way. His texts might be quite difficult to understand, so that I think his biography may be beneficial for exploring his ideas because his works bear trace from his life, naturally. I hope it helps you to learn his life and with this way, you can examine his concepts more easily. I also found another video that is based on The Communist Manifesto. It explains his ideas in his work simply and clearly, therefore I strongly recommend to check it out.