Achim Moeller has been an art dealer, advisor, and appraiser since 1965. For the past 55 years he has specialized in 19th and 20th Century European and 20th Century American Masters, making Moeller Fine Art the foremost gallery in the United States for works by German Expressionists and the Masters of the Bauhaus. He has sold major works by Max Beckmann, Ernst Ludwig Kirchner, Erich Heckel, Max Pechstein, Karl Schmidt-Rottluff, Otto Mueller, Franz Marc, August Macke, Alexej von Jawlensky, Wassil