Abstract
In this report you will find things that I learned about Manuel Castells. First I would like to introduce this author. I think it is important to know who he is. After that it should be easy to understand his thought about knowledge. Manuel Castells was born in Spain in 1942. At school, he started to do politics in integrate a student movement against Franco. When he was 20, he went to Paris to finish his degree and to flee government's repression. After his studies of sociology, he became a teacher in France. He stayed in France until 1979 and after to go in California, USA to become a research professor. During his life, he wrote nearly twenty books. In the beginning, he chose to speak and analyze urban sociology. At this moment, his political opinion was Marxist. These ideas held great importance during his life. At the end of 80's, Castells changed his mind and decided to work on the social transformations. In 1996, he published "the rise of the network society".
