Anna Wintour is editor-in-chief of American Vogue.  She has kept this role since 1988. On arriving in New York Anna Wintour was appointed the creative director of Vogue , she then returned to London and worked at House & Garden.  
In 1988 when Anna Wintour was appointed the editor of Vogue, Grace Mirabella had been the editor-in-chief for a total of 17 years. Anna was injected into the magazine in order to turn around the magazine's "beige years".  Anna gave Vogue a facelift in her debut year by opting to use natural light for cover shoots and mixing high end fashion with cheaper items. In her first issue, she dressed her cover girl in a $50 pair of jeans with a $10,000 jewelled Christian Lacroix t shirt. 
During her time at Vogue, Anna Wintour has become the most powerful person in the fashion industry. It has been said that if you want to succeed in the industry you will first need Anna's blessing. 
Her dominant nature in the industry was satirized in the book The Devil Wears Prada, which was also made into a movie, in which the devil was played by Meryl Streep. After some time Anna and the Film director R.J.Cutler decided to show how is hard to put a magazine to those standards so they created a documentary called "The September Issue". In this movie many editers of the VOGUE office participated but the one that appeared always is Grace Coddington, Creative Director Of Vogue. In many scenes you will see her preparing photoshoots with the best models and the best photographers.
Anna Wintour is famous for her bob and black sunglasses, the latter often present when inside. 
Anna Wintour addressed the new trend of fashion bloggers, by saying that "as much coverage on fashion as possible" is appreciated by the magazine. Being amongst all the noise helps Vogue, as they are the authority, Anna finished. 
Anna is the eldest daughter of journalist Charles Wintour. She names her father as an influence to interest in fashion journalism. She was consulted by Charles to make the Evening Standard more relatable to the youth of the era. 
Wintour was once married to psychiatrist David Shaffer, with whom she had a son and a daughter. Her daughter Bee Shaffer has sinced emerged into the fashion industry as a style icon herself and also writing articles for numerous publications.  Her marriage ended when it was revealed that she was having an affair with Shelby Bryan.
The September Issue
The September Issue premiered at the 2009 Sundance Film Festival. Filmed by director R.J. Cutler , the movie is a documentary on the making of Vogue's 2007 September issue, featuring Sienna Miller on the cover.  The magazine weighed in at five pounds and had 840 pages. 
Council of Fashion Designers of America
Anna Wintour joined the CFDA in 2003 and subsequently assisted in setting up a fund that would bestow money on emerging designers.  The Vogue editor set up the fund to assist emerging designers and to provide support for young talent.