I still use my copy of Cervantes book "Indoor Marijuana Horticulture the indoor Bible" 2 or 3 times a week as reference.

If I could only have one (for now) it would be his. There are others FREE on line so to spend money, that's what I would do.

First thing you should do is to get a good book.

I recommend a copy Jorge Cervantes book "Indoor Marijuana Horticulture the indoor Bible" you will use it as a reference for many years to come the ISBN number is 1-878823-29-9 he may have a new one out by now, Iā??m not sure.