From stanford website:
Essay Length
Your answers for all of the essay questions cannot exceed 1,600 words.
You have your own story to tell, so please allocate the 1,600 words among all of the essays in the way that is most effective for you. We provide some guidelines below as a starting point, but you should feel comfortable to write as much or as little as you like on any essay question, as long as you do not exceed 1,600 words total.
Essay 1: 750 words
Essay 2: 450 words
Essay 3: 400 words
Formatting
Use a 12-point font, double spaced
Recommended fonts are Arial, Courier, and Times New Roman
Indicate which essay question you are answering at the beginning of each essay (this does not count towards the 1,600 word limit).
Number all pages
Upload all three essays as one document
Preview the uploaded document to ensure that the formatting is true to the original
Save a copy of your essays
From MIT Sloan website:
Cover Letter
Please prepare a cover letter (up to 500 words) seeking a place in the MIT Sloan MBA program. Your letter should describe your accomplishments, address any extenuating circumstances that may apply to your application, and conform to standard business correspondence. Your letter should be addressed to Mr. Rod Garcia, Senior Director of Admissions.
Essays
We are interested in learning more about how you work, think, and act. For each essay, please provide a brief overview of the situation followed by a detailed description of your response. Please limit the experiences you discuss to those which have occurred in the past three years.
In each of the essays, please describe in detail what you thought, felt, said, and did.
Essay 1: Please describe a time when you had to convince a person or a group of your idea. (500 words or fewer, limited to one page)
Essay 2: Please describe a time when you overcame a personal setback. (500 words or fewer, limited to one page)
Supplemental Information (Optional)
The Admissions Committee invites you to share anything else you would like us and/or your future classmates to know about you. This may be in a written essay of 300 words or less (limit 2000 characters) or in a multimedia presentation. Presentations must be accessible via an unprotected URL and cannot be uploaded directly into your application. Videos should be no more than one minute long; please do not use Flash.
