Hirst, who is associated with a company that provides testing materials for the certification, promotion, and training of fire and emergency medical personnel, presents a study guide for national or state certification, promotion, or training examination in trench and structural collapse that includes multiple choice questions similar to the exam. The guide aids in improving knowledge, eliminating test-taking fear, building self-confidence, and developing good study and information-mastery skills by providing an approach to exam preparation, test-taking tips, and practice exams written by fire and emergency service personnel. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)