Description:I only bought this book to help pass Module 4. My company sent me for classes and provided study materials to assist with the first 3 modules, but then I switched jobs. Since my new company would not pay for my last exam or the study materials, I was trying to find a reasonably priced resource to help pass my last module. This book was reasonably priced, but not helpful. It provides a very light, abbreviated outline of what is covered on the exam. There were some related topics, but nothing as detailed as what I was used to reading. I would save your money and put it toward a study guide that is a little more in depth.