For the review below u really dont know wat u are talking about. and why is that that you are the only one that doesn't understand the book when every one else does and if you dont understand it then go got cannabisbook.com and post a message in the forum and the webmaster will tell you what it meant. This is truely a book that is from scratch and the way you know is cause there is no bibliography and most growing books have them which means they copied which also means all the information from CGB is from experience!!! Also this is the only book that has excelent editing others lack it like the indoor bible by jorge. dont get me wrong i love that book to but it was way to confusing had to read it over and over to finally understand wat he was saying and the CGB you only need to read once!!! Soon this book will be on the book shelf of every grower in the world beg.-expert!!!