This book will teach you the importance of combined time frame trading and how it can impact your trading results for the better. This method of trading is commonly used by professional traders. It allows them to generate huge profits both short and long term in the same market.
I enjoy Lode Loyens forex books. With forex there's not much written about how the instrument works and trading strategies. Lode's books are a quick read, usually less than an hour, and contain a few nuggets of ideas that I incorporate into my own trading system.