A pathetic waste of money! This book is consists mostly of practice exams that have been collected and placed into one volume. Some of the diagrams and graphs on these exams are hand written and barely legible. After each exam is a solution page that gives the answers to the questions. The Solution page, unfortunately,doesn't explain the theories behind the answers. At the end of the book there is a short study guide, written is small font, that provides an overview to the material needed for the exam. Overall, this book looks like bits and pieces from other books that have shoved together into one volume. ...s, one should expect a better organised study guide.