Galerie Dorothea van der Koelen, founded in 1979, is one the leading German galleries of contemporary art. The gallery has contributed to several establishments including its first publishing house in 1986, second gallery in 1989 in Mainz, Germany, second publishing house in 1995 and third gallery in 2001 in Venice, vander Koelen Foundation for arts and science in 2003 and CADORO – Centre for Art and Science in 2014. In 2015, Dr. Dorothea van der Koelen was awarded theMax-Slevogt-Medalas well as the Gutenberg statuette in 2019 in recognition of her outstanding achievements and extraordinary contributions to the field of contemporary art. Since 1981, the gallery has participated in more than 250 international art fairs. Since 1985, Dr. Dorothea van der Koelen, owner and director of the gallery, has curated more than 60 international art exhibitions and public projects worldwide in 30 countries and published more than 200 books on art. In 2023 Dr. Dorothea van der Koelen was celebrating the 20th anniversary of the van der Koelen Foundation for Art and Science in Mainz with the exhibitions»Masterpieces of … « in Mainz.