When was the last time you heard this from a student about the textbook you assigned? "Dr. Foster, I had heard great things about your book. On my first test I received a 95 per cent and there isn't a doubt in my mind that that's a credit to your book. If your book were not the text there's a strong possibility I would have dropped the class by now; so I really appreciate the effort you took in writing such an exceptional book.--Gregory Bouras, student.