An essay mill is a business that allows customers to commission an original piece of writing on a particular topic so that they may commit academic fraud. Customers provide the company with specific information about the essay, including: a page length, a general topic, and a time frame with which to work. The customer is then charged a certain amount per page. The similar essay bank concept is a company from which students can purchase pre-written but less expensive essays on various topics, at higher risk of being caught. Both forms of business are under varying legal restraints in some jurisdictions.