Did you know that one of the best ways to get the knowledge you need to be an effective proof reader is to take a training course? It will be the best move you ever make. Courses are not mandatory, but it can be very challenging to find work that is available to those who do not have a proofreading training certification.If you are trying to build your freelance business, it can be difficult to find the time to take a training course. Who has the time to travel back and forth from college to .