Very simple procedure. Tiramisu is basically a trifle, involving whipped cream, mascarpone cheese, and lady fingers dipped in coffee liquor or espresso. I like to add a chocolate zapaglione, but that is definitely optional. I would start by making a starter recipe- like this one from Giada Di Laurentiis-
http://www.foodnetwork.com/recipes/giada-de-laurentiis/tiramisu-recipe/index.html