This book provides a no-nonsense, practical, to the point step-by-step guide to performing a commercial and industrial energy audit. The intended audiences are building owners, caretakers, energy auditors, and facility managers, who want to understand, track, set goals, and predict future energy usages and costs. This book concentrates on revealing a building's energy usage patterns, identifying a building's energy waste by performing bill analysis and energy audits, and elaborating on the best methods to reduce energy waste and the overall energy consumption of a building.