3R26. Engineering Rock Mechanics: Part 2. Illustrative Worked Examples. - JP Harrison and JA Hudson (Huxley Sch of Env, Earth Sci, and Eng, Imperial Col of Sci, Tech, and Med, Univ of London, London, UK). Pergamon, Oxford UK. 2000. 506 pp. ISBN 0-08-043010-4. $128.50. Reviewed by ME Popescu (Dept of Civil and Architec Eng, Illinois Inst of Tech, 3201 S Dearborn St, Chicago IL 60616).This book reviewed here is a companion book to Engineering Rock Mechanics: An Introduction to the Principles by Hudson and Harrison (see previous Review, 3R25). This companion book contains worked examples of engineering rock mechanics in action as the subject applies to civil, mining, petroleum, and environmental engineering. This book can be used as a stand-alone textbook or as a complement to the introductory book. The book covers the necessary understanding and the key techniques supporting the rock engineering design of structural foundations, dams, rock slopes, tunnels, caverns, hydroelectric schemes, and mines. The authors adopted a question-and-worked-answer presentation—the question and answer sets have been collated into 20 chapters which match the subject matter of Engineering Rock Mechanics: An Introduction to the Principles: Chapters 1–13 on rock mechanics principles and Chapters 14–20 on applications in rock engineering. Part A entitled “Illustrative worked examples–Questions and answers” can be read as a narrative consisting of sequences of text, questions, and answers, while in Part B entitled “Questions only” the same questions can be tackled without the answers being visible.Each chapter of Part A has the same format: Section 1–Introductory aide-memoire to the chapter subject; Section 2–Questions with worked answers that illustrate the principles of the rock mechanics subject and the associated rock engineering design issues; and Section 3–Additional points, often reinforcing the most important aspect of the subject. Part B includes question sets that give examples of the procedures often encountered in practice. It emphasizes that a good designer needs not only knowledge for designing (technical knowledge), but also must have knowledge about designing (an appropriate process to follow). There are three appendices. Appendix A contains a 3D stress cube cut-out which can be copied and made into a model as an aide-memoire. Appendix B contains a hemispherical projection sheet which can be also copied and used. Appendix C contains RMR and Q rock mass classification tables. Exhaustive references, lists of units and symbols, and a subject index add very much to the value of the book. Engineering Rock Mechanics: An Introduction to the Principles and its companion volume, Engineering Rock Mechanics. Part 2. Illustrative Worked Examples, deftly and elegantly bring together timely and in-depth information on one of the most active fields of applied mechanics. The books are written by authors with long standing teaching, research, and consulting experience in rock mechanics engineering. These books are clearly written and the text, figures, and tables are produced to a high quality. These two books represent a significant contribution to the challenging field of rock mechanics and should be recommended as a reference for university libraries serving civil engineering, mining engineering, and geological engineering programs, as well as for research corporations, and engineering consulting firms.