The third edition of this multi-authored, popular Textbook of Tuberculosis and Nontuberculous Mycobacterial Diseases has been thoroughly revised, updated and rewritten to present a comprehensive account of tuberculosis [TB] and nontuberculous mycobacterial diseases. It has contributions of experts from several parts of the world with a vast experience. Beginning with insights into the history and epidemiology of tuberculosis, the book deals extensively with the current understanding of the immunology, and immunopathogenetic mechanisms of this disease. The chapters on biology of mycobacterium tuberculosis, nontuberculous mycobacterial infections, susceptibility factors of tuberculosis with special emphasis on HLA and molecular mechanisms underlying the clinical manifestation of TB provide an excellent account of these topics. The clinical presentation, laboratory diagnosis, the treatment of TB of various organ systems, prevention and control of TB are exhaustively covered. Chapters have also been devoted to HIV-TB co-infection, drug-resistant TB [including M/XDR-TB], ethical and legal issues in TB, Revised National Tuberculosis Control Programme, global TB control programme, and the role of medical schools in TB control programmes. This edition carries a comprehensively revised chapter on nontuberculous mycobacterial diseases. This edition will be an asset to both undergraduate and postgraduate medical students, a source of reference to the researchers and will help practicing doctors to update their knowledge and aid in rationale, scientific and efficient management of patients with TB. It is hoped that the reader who has gone through ‘Tuberculosis [3rd edition]’ from cover to cover will get a comprehensive bird’s eye view of this subject.