Austrian artist, Gustav Klimt's work in the early 1900's exemplifies the transformation of popular art style between the old art of the nineteenth century and the new art of the twentieth with a strong theme of 'sexuality in art'. Klimt's early career in the late 1800's was based mainly on commissions; however, this stage came to an end when he presented the commissioned, Philosophy to the Ministry of Culture and Education, whose congress deemed Klimt guilty of pornography and excessive perversion. Despite this controversy, Klimt's work grew to be highly appreciated by the general public and Klimt was soon considered a favorite portraitist by women of the time. Interestingly, Klimt approached a new work by first painting women naked, before adding their clothes over the top - this is thought to be a rebellious step against the hypocritical Victorian repression of the age.
For further information on the life of Gustav Klimt, please see the links below.
Links:
http://www.iklimt.com/ - Gustav Klimt: His Life and Work
A simple site with (ignoring the occasional typo and grammatical error) interesting highlights of Klimt's personal and professional career displayed in an interesting, interactive form.
http://www.expo-klimt.com/1_4.cfm - Klimt Online Museum
A long list of many of Klimt's work with information for each including the titles in original languages, dates and media used.
http://www.ibiblio.org/wm/paint/auth/klimt/ - WebMuseum: Klimt, Gustav
A summary of Klimt's professional career including information on some of his most famous works.