Having written more than 80,000 words about knife skills as well as having taught numerous classes on the subject, I have come to the belief that good knife skills can be defined by just three simple aspects: grip, holding hand, and knife motion. In other words, the essence of good knife skills can be summarized by how you hold your knife, how you hold your food, and how you move your knife.
A solid little video on something every cook should know something about.