I am doing an essay these days. One crucial step is reading and note making. I made notes about key points in every material. When I started to write the essay, I found the notes are not strong enough to support writing. one problem is that I did not organise the notes. I find that it would be more convenient if I organise notes according to contents rather than to sources. For instance, I should have put contents about the features of bureaucracy together. I will take notes in this way next time.