If you're looking for a book on trend following my favorite is Andres Clenow's "Following the Trend" from 2012
http://amzn.to/2a50wJj
He reverse-engineers CTA returns and determines most trend-following CTAs are using the same trend following rules, they just allocate across asset classes differently. He gives details of these trend-following strategies that are simple and easy to duplicate yourself.
One of the best parts of the book are the chapters where he goes through month-by-month returns following this strategy over several years of history, and the challenges managing client money using the strategy, even though it is long-term profitable. It's very helpful in preparing you for some of the decisions you will have to make when trading systematically that you may not be prepared for otherwise.