Sushi

I love sushi!!!--- but know nothing about it.  What a gift, to provide not only the food, but also the knowledge.  They sell sushi in many of the grocery stores around here, but since I don't know which are which, and I know there are some with very, very hot something in them, I don't dare try it.  Maybe I should.  Once in awhile, I see what appears to be a sampler package.  Not cheap!