Our subliminal minds often pick up repeated knowledge. Although it isn't an exact science, there is some proof that listening to repeated words or phrases can help them settle into our brains. Stop smoking tapes often include repetitions of phrases such as "You have no need to smoke" and "Smoking is not the choice for you to make." Those that believe in subliminal learning claim that the more something is repeated, the more it sticks in the brain. Buy or create a tape for yourself. Repeat the key facts of whatever you want to learn several times on the tape, and then listen to it often. The best time to listen to these tapes might be while you are sleeping because that is when your subconscious brain is more closely linked to your conscious brain.
Subliminal learning does not work for complex facts or complex ideas. It probably won't work to learn a language. It will work best for simple things, such as memorizing facts, learning the names of things, or learning the various processes of something. Keep the information on the tapes simple and repetitive, and keep using other methods of practice in order to greatly enhance your ability to learn.
The best learning you can do from subliminal tapes is learn how to change yourself. The subconscious mind has a lot to do with your personality. If you want to learn how to be more outgoing, more positive in your thoughts, more caring for other people, or more receptive to new ideas, your subliminal mind can easily grasp these concepts. Learning how to stop smoking or learning how to lose weight are also topics that you can use your subliminal mind for.