The book "Current Research on Fatigue Cracks," edited by T. Tanaka, M. Jono, and K. Komai, presents recent findings from Japanese researchers on fatigue crack behavior. The publication aims to disseminate these results in English to promote global scientific progress. The content covers three main topics: short fatigue cracks, fatigue crack growth and threshold, and corrosion fatigue cracks. Various researchers discuss different aspects of these topics, including crack behavior, growth, closure, and the effects of stress ratio and loading conditions. The book also includes discussions on corrosion fatigue in structural steels and the prediction of corrosion fatigue strength. Overall, it provides a current assessment of Japan's research on stable crack growth and should be of interest to those in the field. "Advanced Fracture Mechanics" by Melvin F. Kanninen and Carl H. Popelar is a comprehensive text on fracture mechanics from the perspective of applied mechanics. It clearly explains fundamental concepts and covers various aspects of fracture mechanics, including linear elastic fracture mechanics, dynamic fracture mechanics, elastic-plastic fracture mechanics, and fatigue crack growth. The book is well-illustrated, well-referenced, and provides a compilation of fully plastic solutions for various geometries. It is recommended as an essential resource for both newcomers and experienced professionals in the field of fracture mechanics.The book "Current Research on Fatigue Cracks," edited by T. Tanaka, M. Jono, and K. Komai, presents recent findings from Japanese researchers on fatigue crack behavior. The publication aims to disseminate these results in English to promote global scientific progress. The content covers three main topics: short fatigue cracks, fatigue crack growth and threshold, and corrosion fatigue cracks. Various researchers discuss different aspects of these topics, including crack behavior, growth, closure, and the effects of stress ratio and loading conditions. The book also includes discussions on corrosion fatigue in structural steels and the prediction of corrosion fatigue strength. Overall, it provides a current assessment of Japan's research on stable crack growth and should be of interest to those in the field. "Advanced Fracture Mechanics" by Melvin F. Kanninen and Carl H. Popelar is a comprehensive text on fracture mechanics from the perspective of applied mechanics. It clearly explains fundamental concepts and covers various aspects of fracture mechanics, including linear elastic fracture mechanics, dynamic fracture mechanics, elastic-plastic fracture mechanics, and fatigue crack growth. The book is well-illustrated, well-referenced, and provides a compilation of fully plastic solutions for various geometries. It is recommended as an essential resource for both newcomers and experienced professionals in the field of fracture mechanics.