content: I purchased this book in 2004 in preparation for the National PLS Exam after failing the exam by 3 points on the first attempt. In my opinion, the most useful parts of this manual are the sample questions and answers along with Appendix B "Preparing for and Taking Examinations" where the author breaks down the multiple choice format. I would highly recommend this review manual for anyone preparing for the National PLS exam or even the new test format that will be given on the 2012 CA State Specific exam. Even though we have no idea what the test format will be for the 2012 State Specific Exam, this book will prove to be a valuable resource particularly for the multiple choice questions. I would also recommend this manual for Civil Engineers taking the survey portion of their exam.