The right knife

Peel knife:   like chef knife, but shorter and thinner, which is useful in peeling fruits and vegetables.
Bread knife: The bread knife is usually rectangular and it has sharp teeth that resemble a saw, so you can pass it in bread and cut it.
Chef's knife:   sharp knife wide blade, which with several usage like meat and vegetables.
Japanese knife Santoko:  knife wide blade used as an alternative to the chef knife, which can be used in several usage like meat and vegetable slicer.