You gotta do real hard on tutorials. The basic Powerscore series are top on my list given their concise composition style and unequivocate language. (As you dig deeper you can find whole lots of the other publishers either teach you to build up your own signaling system or simply just leave you with nothing. Subjective, right?) Get a really nice notebook and crack the tome, don't try to skip a tiny bit! Actually all you need lies right there in those books. It takes painstaking efforts.