The Knife is one of man's oldest tools. Throughout history, knives have been essential for survival, as well as for providing food and shelter. The knives used in the kitchen today are remarkably like the ones developed thousands of years ago. As knife technology and production methods have advanced, knife uses have expanded and knife forms have become more specialized. Today, the knife continues to be an important tool, though more for sport and work than survival, as in the past. During all these years, however, the basics of a good tool's shape and function and the skills necessary to use tools have remained constant.