The second edition of this textbook includes a refined presentation of concepts in each chapter, additional examples new problems and sections, such as conformal mapping and mechanical behavior of wood while retaining all the features of the original book. The material included in this book is based upon the development of analytical and numerical procedures pertinent to particular fields of linear elastic fracture mechanics LEFM and plastic fracture mechanics PFM, including mixed-mode-loading interaction. The mathematical approach undertaken herein is coupled with a brief review of several fracture theories available in cited references, along with many color images and figures. Dynamic fracture mechanics is included through the field of fatigue and Charpy impact testing.