Recommended Reading
There are many outstanding books available on cooking with truffle and about truffle in general.
Cooking and Recipes
Truffles - Ultimate Luxury Everyday Pleasure’ by Rosario Safina and Judith Sutton.
About Truffles
Truffles - by Elisabeth Luard (beautifully written and photographed).
Technical
Taming the Truffle - by Ian Hall, Gordon Brown and Alessandra Zambonelli - The history, lore and science of the 'ultimate mushroom'.