Yes, the Elliott Wave Principle is important, but it is not so often mentioned, apparently not everyone can understand it. I just want to say that this form of technical analysis works, but if you decide to take it seriously, you will need to get acquainted with this theory many a day. Difficulties in the Elliott wave theory is the identification of the waves. Usually, a corrective wave is difficult to determine. All feature is that each wave has a set of characteristics. And these characteristics depend on the market behavior. I read book Visual Guide to Elliott Wave Trading and it helped me a lot. And I advise you to do it.