The Art of Glass is amazing and is an item that is made, generally as an artwork for decoration but often also for utility like a pipe, cup, pen and more. Made from glass, and sometimes combined with other materials to make some amazing pieces of glass art. Techniques include stained glass windows, leaded lights, glass that has been placed into a kiln so that it will mold into a shape is called slumping, glassblowing, sandblasted glass, and copper-foil glasswork. In general the term is restricted to relatively modern pieces made by people who see themselves as artists who have chosen to work in the medium of glass and both design and make their own pieces as fine art, rather than traditional glass worker craftsmen, who often produce pieces designed by others, though their pieces certainly may form part of art. Studio glass is another term often used for modern glass made for artistic purposes. Art glass has grown in popularity in recent years with many artists becoming famous for their work; and, as a result, more colleges are offering courses in glass work. The glass pipe industry has no doubt advanced the glass art field immensely.