Sushi is the most famous Japanese food. To prepare sushi and sashimi, Japanese chefs use especial knives, designed to cut and slice the fish.
Yanagiba and takobiki knives are long and thin knives, sharpened on one edge designed for slicing the fish. If we only want to buy one knife for sushi, we will choose one of them, as we usually buys a part of fish.
Deba knives are heavy knives, also sharpened on one side, used for cutting the external parts, as fish tails or fins, and fishbones.