Feedback, as always, is appreciated. As much as I hope you learn from me, I hope to learn from you as well. Although an explanation of something might seem perfectly clear to me, you may think otherwise. In a classroom or lecture environment, audience facial expressions generally indicate to me whether confusion exists; in this current format, however, I don't have that luxury. It is my intention that upon completion of this book you will have gained the knowledge you were seeking. I encourage you to contact me with any feedback you might have.