then there issashimi, which is just sliced up.nd then there is nigiri, which is laid over sushi rice. >> is it all raw? >> some of it is, but there is a lot of cook things. smoked salmon, smoking being a form of cooking. >> can i do this at home? >> we can go ahead and get started. >> surprise me. >> maki is the most popular ones. i will make you a to a role. >> the japanese, how do they prepare their fish? >> it is for a much a form of preservation, it was on rice, and would ferment. eventually they started adding vinegar to it. adding to the taste and everything. they created a new way to do it. street food. >> this is what? >> wasabi adds a refreshing spicy kick to it. and this acts as a palette cleanser. >> what about the sushi that the flight rice with a piece of fish on top? >> that is called nigiri. i can show you that. >> molded into the shape that we all know? >> part of what sells it to anyone is the way it looks. it is always so extravagant looking, fun to make. that is nigiri. >> any other shapes or presentation styles