I have a great pleasure to inform the "AA" Readers that the 40th Winter School on Wave and Quantum Acoustics, organized by Upper Silesian Division of the Polish Acoustical Society and Institute of Physics - Scientific-Didactics Center at Silesian University of Technology, is planned at the turn of February and March 2011 in beautiful scenery of Silesian Beskidy Mountains. Many times it was organized in Wisła, Skoczów, Szczyrk and Korbielów, and this year it will be organized again in Szczyrk.