Be as honest as you can. Essay evaluators can read between the lines � do not underestimate them.
Write the essay yourself. Don't get an expert or your best friend to write for you. The admissions officers can compare your essay style with your grades, test scores, and writing samples from GMAT, GRE or the SAT. If they suspect fraud, the application will be thrown out.
Get the essay checked. The writing must be your own, but you are allowed to get advice. A parent, friend or counselor can give an opinion on how the essay sounds. You can also get help on grammar, spelling and layout.
Evaluate rather than narrate. When writing about your experiences it is important to discuss what you have learned. Don't just "tell stories".
Be logical. Make sure the essay flows well with a proper beginning, middle and end. Each paragraph should follow logically from the previous one.
Focus. Focus on specific points that only you could have written, and which show your unique personality. Avoid general statements.
Be positive. Never complain about your school, family or country. If you want to explain why you have bad grades, do so without blaming others.
Keep the language simple. Avoid quotes because the examiner wants to hear your words. Don't use flowery language.
Keep it short. Concise writing is always appreciated.
Pay attention to detail. Use 12 point font. Use a simple font such as Times New Roman. Justify the text (i.e. align to both left and right margins).