This is a textbook for the General Measurement Specialist certification exam. There is some writing in it, please be aware. As far as I remember, this textbook could only be obtained by attending a training course. I believe it's a valuable reference book, so I hope you will consider purchasing it. For those who purchase it, I will also include the handouts distributed at the training course. I was able to pass the exam on my first try by studying only this reference book and the past exam questions I have listed separately. I hope this will help you pass the exam.