This publication provides introductory technical guidance to civil engineers, geotechnical engineers and other professional engineers and construction managers interested in instrumentation methods, techniques, devices and equipment for cut slopes and rock masses such as for building foundations, dams, and transportation and hydraulic structures. Here is what is discussed: 1. INTRODUCTION, 2. PLANNING CONSIDERATIONS, 3. APPLICATIONS, 4. TYPES OF INSTRUMENTS AND LIMITATIONS, 5. DATA INTERPRETATION AND EVALUATION, 6. DATA PRESENTATION, 7. DATA EVALUATION, 8. DATA USE