Comment from Jeff Grant - Owner of BuyHydroponicSupplies.com:  I was very skeptical about "another" book or DVD on hydroponics, but this one turned out to be a winner!  It covers the basics, and some good details on hydroponics, aeroponics, nutrients and lights - everything you need to get started, or to learn all the stuff you haven't had time to read about in all the books you have bought (sound familiar :) 

I think it's a good product, If you buy it and don't think it's worth the money, send it back and I will refund your purchase price!