Well I have been looking for a one stop shop and this book looks like it! The exam specs is laid out clearly and the book is structured around it. I thought I am buying a normal exam practice questions book but this is beyond that, the types of questions and variations and the amount of referencing and coverage of manuals and codes ... it is easy to read also and easy to understand. I don't think anyway could fail the exam with this book! Although my exam is next month, i wanted examples that take me through as much codes and manuals as possible, and i can see this in these examples provided in this practice book!