sentences:  H. W. Janson
  
  Horst Waldemar Janson (October 4, 1913 – September 30, 1982), who published as H. W. Janson, was a Russian-born German-American professor of art history best known for his "History of Art", which was first published in 1962 and has since sold more than four million copies in fifteen languages.Janson was born in St. Petersburg in 1913 to Friedrich Janson (1875–1927) and Helene Porsch (Janson) (1879–1974), a Lutheran family of Baltic German stock.