Engineering applies scientific principles to the solution of practical problems and the design of devices. Above all, engineers are problem solvers.
Engineering has traditionally been grouped into the subdisciplines of chemical, civil, electrical and electronic, industrial, mechanical engineering, and material sciences. With the emergence of newer sub-fields (such as aerospace, biological and biomedical. environmental, and nanotechnology and nuclear engineering) that overlap with other sciences, social sciences, and even humanities disciplines, the scope of engineering has become enormous. The most important literature for engineering are found in: Journals, Conference Proceedings, Patents, Standards, Technical Reports and Books.