Since I have some experience in this area, I thought I would tell you what I know. The most important thing to understand is that it is possible.
Telekinesis is part of physical reality, just as telepathy is.
The next most important knowledge related to achieving success with this, or any other human ability, is realizing that if one person can do it, any normal person can do it, and that means you. There is a prerequisite to achieving success in this endeavor, and that is having the ability to relax completely and focus your attention without distraction. In itself, concentration is one of the easiest activities one can possibly perform. It is simply being aware of one thing without distraction, and happens to an intense degree while watching the exciting scenes of any motion picture, for example. In actual practice it can be nearly impossible to maintain concentration for any length of time due to the subconscious concerns of day to day living.