This book focuses on topics in the field of welding science, technologies, and equipment, with a particular emphasis on quality management. The textbook consists of four modules covering quality management basics, measurement, imperfections, and non-destructive testing. The material is presented in an illustrated and uncomplicated manner. The textbook is based on the experience of professors of the National Technical University of Ukraine and the Approved Training Body for International Welding Engineers and Technologists of the International Institute of Welding, making it an ideal resource for graduate and postgraduate students, university professors, and welding specialists.