Introductory technical guidance for professional engineers interested in control of sulfur and nitrogen oxides in air pollution control. Here is what is discussed: 1. FORMATION OF SULFUR OXIDES, 2. AVAILABLE METHODS FOR REDUCING SOX EMISSIONS, 3. PROCEDURE TO MINIMIZE SOX EMISSION, 4. SAMPLE PROBLEMS, 5. NITROGEN OXIDES (NOx) CONTROL AND REDUCTION, TECHNIQUES.