History's first technical book ever written on the subject of sharpening. THE RAZOR EDGE BOOK OF SHARPENING by John Juranitch is the result of over 30 years of dedicated research and study on the subject of cutting edges. Prior to the publication of his book there was virtually no written information available about sharpening. THE RAZOR EDGE BOOK OF SHARPENING dispels old wives tales, and covers topics such as sharpening stones, proper angles, sharpening axes, fishooks, chainsaws and much more.