Hi, my name is Pierre le Mettre and I live in Paris, France. I purchase this book in May 2010 and find it to be very good money spent. It gives the information in very basics, which is good for someone like me, new to hydroponics. I now use hydroponic tubs in my courtyard and having read the book, I find I could tell anybody all about hydroponics. Finally I buy something that not rip me off!