How to Make Sushi - Preparation

Prepare your fish
 - Purchase sushi grade seafood, not packaged frozen fish
 - Cut the fish into uniform slabs, slicing the top and bottom to remove the skin and scales
 - Slice pieces about 1/4-inch thick
http://www.howcast.com/videos/194-How-To-Prepare-Fish-For-Sushi

Set up your equipment
 - A sharp knife
 - A cutting board
 - Bamboo mat
 - Food items (fish, cucumber, avocado, etc.)
 - Nori (seaweed)

Cook the rice
 - Preferably use Japanese short-grained rice
 - Rinse the rice
 - Pour the rice into a pot to cook in
 - Fill the water to a level slightly higher than the level of rice
 - Let the rice sit in the water for about 30 minutes
 - Turn the heat on to high and cook until the water disappears
 - Add rice seasoning

Types of Sushi - Oshi Sushi

(oshizushi, 押し寿司)

This sushi originates from Osaka and is made using a mold-like wooden block known as oshibako.  The toppings are put on the bottom of the mold and then it is covered in rice.  Then, the cover is brought down to press the ingredients into a tight rectangular shape.