As you prepare the extended essay, you will want to study several sample essays. This will help give you an impression of the final product and an understanding of what is expected. You can do a lot with a good sample. For example you may want to focus on one specific criterion. You may want to study its use of citation. You may simply want to see what a good title page looks like. Finally, it goes without saying that sample material is an excellent way to make yourself more familiar with the assessment criteria for the extended essay. You can compare your marks with the examiner's.
The samples have been labeled 'EE' for 'extended essay', 'C'1, 'C2' or 'C3' for 'category 1, 2 or 3', (see requirements) and 'S' for the number of the sample.