Glassblowing is one of the most used technique for creating "art glass" and is still favoured by most of today's studio glass artists. This is because of the artist's intimacy with the material, and an almost infinite opportunity for creativity and variation at almost every stage of the process. The making of art glass is distinctive and shows individual skill.  The importance of decoration – in the Victorian era in particular – meant that much of the artistry lay with the decorator.  Up to about 1940, most of the processes involved in making decorative art glass were performed by hand.  "Blown glass" refers only to individually hand-made items but can include the use of moulds for shaping, ribbing, and spiking to produce decorative bubbles.