Most people shy away from learning self development techniques like hypnosis and NLP for two main reasons.
1.They don't want to read fat books full of jargons and difficult grammar and
2.they don't want to pay for expensive one on one sessions with experts
As much as most people wish they could learn such useful techniques, there are obstacles which just don't allow them to. I was like that once upon a time till I decided to get off my bum and do something about it.
What I realized is that, most knowledge about these techniques is readily available however it's the way the concepts are explained and presented which matters the most. For example, try reading one of many books Dr.Bandler wrote about NLP and I bet that you will contribute to increased sales of aspirin.
Thankfully there are other scholars and writers who have written these monolithic texts and presented them in a easier to understand way for us mere mortals.Steven Pealiari, who runs a hypnotism and NLP school is one of them. For people who can't attend classes at the school, he has readily provided a lot of easy to understand material ideally suited for beginners. Steve talks more about these resources on his personal website here.
No more excuses, Write this on a piece of paper and stick it at your workspace ! If covert hypnosis is what you want to learn then pick up a book ,make notes and get going. This is a key to things in life you will be at a loss to miss. So stop and don't let such chances disappear.