It is good to study from ebook but it is also important to test your learning in demo account so that you can have more knowledge about the market. Only ready books is not going to help you about complete Forex.I think will good if any trader learn from ebook, that created by profesional trader, so they can learn how to trading forex based on profiesional view, but indeed each trader eventually having own capacity on brain and not always easy understand on theory, but fail when trading on real account