Drawing this diagram allows you to compare and contrast two or even several things/events. If you are assigned to compare the novels of Charles Dickens and Wilkie Collins for example, you should not emphasize that both of these authors are classical English writers.
In the space that does not overlap, list the features that make things/events different. Once all major points of comparison/ contrast have been listed, one should concentrate on the main aim of the comparison/contrast assignment. If you are assigned to compare two historical events, one should ask the following questions: When did it happen? It is the central feature of your essay, the guide of your writing process.
In order to draw a chart you should understand the features of the things to be compared. On this stage of the writing process you should have a clear idea of the purpose of this essay. Unlike thesis in other types of essays, thesis of compare/contrast essay should be specific and backed up with highly argumentative analysis.
If you think that differences rather than similarities are more important for your essay, you should end up with stressing differences, and vice versa.
Question: Compare and Contrast the issues associated with patients receiving inpatients and home-based palliative care. For my very difficult paper, I did not expect to get a writer as fast as I did.