Written by pioneers in the study and analysis of very high cycle fatigue this text brings together the most recent findings on gigacycle fatigue phenomena, focusing on improving the reliability and performance of key engine and machine components. This reference reflects the explosion of new concepts, testing methods, and data on very high cycle fatigue and collects the latest analytical methods and results from renowned authorities on the subject. The authors showcase recently developed technologies for improving performance and prevent fatigue in long-life cars, aircraft engines, high-speed trains, commercial power generators, and ships.