I want to know whether any good guitar book is available online. A book that teaches guitar in a systematic way (step by step) right from begining to intermediate or skilled level. I want to download it and learn on my own during my free time. At present, i learn with lots of online free lessons on various sites...but everyone has different style and techniques. I want to follow something which has complete learning modules. I tried to search for "torrent" files....but have not got success yet.