analysis and use of sources

Historians have different kinds of sources to help them understand historical events. They can use all sorts of written sources like diaries, books, newspapers etc. But they can also use paintings, fotographs and films. How do you know how to use all this information in a proper way so you get a good look into the past?

kind and type of sources
what is a source? video and textual explanation

the diary of Anne Frank

interpretation of sources

representativeness