My Precalculus classes switched over to your 3rd edition two months ago. Thank you for a great book in so many ways! I am switching my College Algebra classes over to your 4th edition next year. Like you, I always read prefaces (one of the reasons I chose your books to begin with) and, while I found two references to the New Preface in the 4th edition, I cannot for the life of me find the actual New Preface itself. Help!