Psychologists tell us that the secret to learning for future reference is overlearning. Experts suggest that after you can say, “I know this material,” that you should continue to study that material for an additional one-fourth of the original study time. The alphabet is an example of overlearning. How did you learn it? Probably through recitation which is the best way to etch material into the memory trace. Manipulate the material as many different ways as possible by writing, reading, touching, hearing, and saying it. In an experimental study, students who overlearned material retained four times as much after a month than students who didn’t overlearn.