The book you hold in your hands is not only an excellent learning tool, but it is truly beautiful, as well. I am happy to have supplied the text that you will read, but the gorgeous images come from Wiley's crack team of artists and illustrators. The layout of the tasks, the accuracy of the spelling and grammar, and the veracity of the information are all the result of hard work performed by project editor Sarah Hellert, copy editor Lauren Kennedy, and technical editor Don Passenger. Thanks to all of you for your excellent work. My thanks, as well, to acquisitions editor Jody Lefevere for bringing me onboard, and to publisher Barry Pruett for recommending me.