I bought this book when I was putting my 1st studio together and thought it overly technical for me at that time. All the ideas and principles are there but I felt that I had to read through a lot of stuff to find the parts that were relevant to me. I think the author tries to be all things to all home recording studio constructors which is good of course. The studio I have now has been constructed on an entirely different principle, don't treat the whole room, just the area which is used for recording, it saves a shed load of cash and works just as well. Don't get me wrong, it's a very informative book but it takes time to tease the relevant information out and, in the light of new sound treatment products and more direct injection recording techniques, it could do with an update if it hasn't had one already. I'd recommend anyone to read it however, because it establishes basic principles which inform you as to how, where, and more importantly, why.