There was a knock on my door this morning. By the time I could make it to the front of the house, the delivery man was gone, but he had left behind a box full red and white books, each with the title Essential LINQ. On the cover was my name, and the name of my good friend Dinesh Kulkarni. This was, of course, a box full of the first copies of my most recent book. They had a arrived at my house on a most propitious date: the first day of spring.