if i was gonna buy a book on

growing marijuana inside which one do you suggest

Why buy ? there are plenty of free ones floating around the net. I think the Ed Rosenthal book was pretty good.

Bottom line is they are all over the net so pick them all up and start reading.

Start right here by reading the grow faq.

thepiratebay.org probably carries most of them

Go and do a search no need to purchase unless you want to.