Book excerpt: GoalsLegionnaires' disease is a severe infection caused by Legionella bacteria that affects more than 10,000 people in the United States every year, with 10% of those people dying from the disease. The goal of this guide is to educate professionals involved with water safety and management programs, including infection preventionists, risk management professionals, public health professionals, safety officers, facility managers, engineering and maintenance staff, water treatment professionals, and consultants. Through the education and training provided in this guide, we hope to reduce the risk of Legionnaires' disease in facilities. The information in this guide will complement in-person training programs on Legionnaires' disease and water safety and management. By working together, we can end Legionnaires' disease!