"The CSP Exam - Essential Practice by Farcas and Cena is, as the name implies, an essential set of questions in Occupational Safety. This book is well laid out in 19 sections. It draws the reader in, which certainly assists with their increased retention of the amount of material that has to be covered. The questions are well introduced with a short narrative before the introduction of the pertinent equations and solution to the over 600 example essential questions. The book serves not only as a formidable preparation for the CIH exam but a good review of basic principles, a reference for many of the day-to-day technical issues confronting the practicing worker's safety and a guide for raising awareness of potential problems for which alert action is required. The authors bring a breadth of experience and insight into the issues handled in the text. They bring context to the basic principles to be highlighted by the examples of the questions and their solutions. CSP Exam - Essential Practice should be a must-have text for everyone in the field." Michael McCawley, Ph.D., West Virginia University.