Guidelines in fracture management-nonunion of long bones II is the second of a set of two volumes in this series which are dedicated to explaining this kind of fracture. Nonunion of long bones is a very challenging orthopaedic problem, especially the infected nonunion. Further, India, with its huge population and high rate of road traffic accidents, presents an increased challenge due to the remarkably high incidence of such cases. While the previous volume dealt with general Principles, techniques and topics, This volume primarily explains the diagnosis and treatment modalities of specific types of nonunion cases and has a more focused coverage.Key features: 1) contributions by Indian trauma experts who have extensive experience (due to high incidence of nonunion cases) in treating not only cases of delayed presentation of complex trauma but also of difficult nonunion.2) Latest and practical treatment methods described.3) high quality clinical photographs depicting preoperative to postoperative stages of nonunion.4) good quality radiographs, MRI, and CT scans supported with line drawings for better explanation and understanding of the subject.5) useful tips and Tricks explained which would be valuable to young as well as experienced practitioners when faced with difficult situations.