I purchased this book to work with a student I am tutoring in English. The chapters cover a nice variety of topics related to business English, and the grammar explanations are reasonably clear. The conversations on the CD are the standard sort of conversations found in an ESL book--read by actors who pronounce everything much more clearly than a normal person. The book's greatest weakness is that some of the cultural information in it is badly outdated. For example, the chapter on registering for school states that most US schools use social security numbers as student ID numbers. That has not been true for many years, and is in fact illegal. That same chapter goes to great pains to explain the difference between a rotary phone and a touchtone phone. I have not seen a rotary phone in this country in years (and my student had never seen one). This book is sorely overdue for a new edition.