A Tiffany lamp is a type of lamp with many different types of glass shade. The most famous was the stained leaded glass lamp. Tiffany lamps are considered part of the Art Nouveau

Art Nouveau

Art Nouveau is an international philosophy and style of art, architecture and applied art—especially the decorative arts—that were most popular during 1890–1910. The name "Art Nouveau" is French for "new art"...

 movement.
The first Tiffany lamp was created around 1895. Beautiful in design and intricacy, each lamp was handmade by skilled craftsmen, not mass or machine produced. Its designer was not, as had been thought for over 100 years, Louis Comfort Tiffany

Louis Comfort Tiffany

Louis Comfort Tiffany was an American artist and designer who worked in the decorative arts and is best known for his work in stained glass. He is the American artist most associated with the Art Nouveau  and Aesthetic movements...

, but a previously unrecognized artist named Clara Driscoll  was identified in 2007 by Rutgers

Rutgers University

Rutgers, The State University of New Jersey , is the largest institution for higher education in New Jersey, United States. It was originally chartered as Queen's College in 1766. It is the eighth-oldest college in the United States and one of the nine Colonial colleges founded before the American...

 professor Martin Eidelberg

Martin Eidelberg

Martin Eidelberg is a prominent American professor emeritus of art history at Rutgers University and expert on art pottery and Tiffany glass. He is notable for discovering that many famous floral lamp designs were not made by Louis Comfort Tiffany personally but by an underpaid and unrecognized...

 as being the master designer behind the most creative and valuable leaded glass lamps produced by Tiffany Studios.

Tiffany's first business venture was an interior design

Interior design

Interior design describes a group of various yet related projects that involve turning an interior space into an effective setting for the range of human activities are to take place there. An interior designer is someone who conducts such projects...

 firm in New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

, for which he designed stained glass

Stained glass

The term stained glass can refer to coloured glass as a material or to works produced from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant buildings...

 windows.

Most of his lamps can be grouped into one of seven specific categories: Irregular Upper and Lower Border, Favrile, Geometric,Transition to Flowers, Flowered Cone, and Flowered Globe lamps.