Laser technology continues to be widely used in industrial terms in various manufacturing processes. This continuously leads to a significant flow of research into the most diverse aspects of this technology, namely in cutting, welding, texturing, engraving operations, and, more recently, three-dimensional (3D) printing of various materials. The most recent technological developments directly related to laser applications have led to new lines of research, which justify the development of some special volumes of high-quality research in this area of knowledge.