This book will give you all the basic knowledge that you need to get your knives as sharp as they should be. If you are not sharpening strange shapes of blades, or edged tools other than knives, it will get you where you are going. There is one section discussing misc. kitchen tools (peeler, corer, etc.) that is unique to this book (although the grater was apparently overlooked). Also note that although several sharpening systems are compared, very few endorsements are made, and the author is not selling anything that I can tell.