Neil Mc Teggart, the online editor for the UK's Mens Health Magazine, has an awesome book that I highly recommend.
So much of what you read on the internet about fitness and diet goes on and on about theory, stories,and other fluff.
Neil writes just what you need to know. His book is only 37 pages, but in my opinion, it's one of best out there.
Straight forward, simple, and it will produce results for you.