How To Play Guitar In Every Key by Howard Wallach from Santorella Publications is not only one of the best selling guitar books in print today, but possibly the best-selling title in the entire Santorella catalog. How To Play Guitar In Every Key is consistently in the top 1, 2 or 3 in sales for the last 13 years and with close to 1,000 titles in print, this is certainly a tall task. Howard Wallach walks you through the process of outlining chords with various exercises and songs in every key. ...