The book "Japanese cuisine" gives you all the useful tips to prepare not only sushi, maki and sashimi, but also most other traditional dishes of the rising sun empire.
26,60 ?, Editions Manise
The Franco-Japanese Cultural Center in Paris offers cooking classes with Japanese chefs every Saturday at the Hattori Center.
Cléa lived in Japan. She has brought back recipes and know-how that she shares on her blog Clairejapon.