While this book dose have some good tips that i used, most of the information I allready know or could have found out without having to buy the book. And it is definatly not for the casual grower because the methods used here are for high end High yeild crops that are produced on a large scale. My advice is if your growing for profit you allready know these things, or if your going to grow for profit start off small and get your feet wet first before wasteing thousnads on equpiment. For casual growers there are some need to know tips but they can probabally be found in any of the more comprehensive for "beginners" books and will have the step by step walkthroughs that you need