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In these countries, so-called academic essays, also called papers, are usually more formal than literary ones.[citation needed] They may still allow the presentation of the writer's own views, but this is done in a logical and factual manner, with the use of the first person often discouraged. Longer academic essays (often with a word limit of between 2,000 and 5,000 words)[citation needed] are often more discursive. They sometimes begin with a short summary analysis of what has previously been written on a topic, which is often called a literature review.[citation needed]