So I'm thinking sorcery in my setting inherently causes madness and mutation over time, accelerating if used improperly as the body tries to acclimate to the energies flowing through it. The most learned end up with something minor after long periods of time such as a third eye, sixth finger, or subcutaneous horn. The inexperienced end up having more drastic mutations until they burn out. Also means the more screwed up looking people either never had any guidance and ravaged themselves or have been around a LONG time for it to progress that far.
Artificially awakening these abilities in someone not prepared for it can be very dangerous for this reason.
Thoughts? Critique?

Do you guys have any recommended reading on psychics/psionics? Preferably documenting real history of its study. Good fiction is acceptable too, anything that'll get my juices flowing and has interesting ideas.