This publication provides introductory technical guidance for civil engineers, mechanical engineers, electrical engineers and other professional engineers and construction managers interested in the principles of cathodic protection for purposes of corrosion control. Here is what is discussed: 1. THE CORROSION PROCESS, 2. TYPES OF CORROSION, 3. RATE OF CORROSION, 4. GALVANIC SERIES, 5. INTRODUCTION TO CATHODIC PROTECTION, 6. GALVANIC CATHODIC PROTECTION, 7. IMPRESSED CURRENT CATHODIC PROTECTION