Dear colleagues In 2023 the 10th international DTTG workshop on “Qualitative and quantitative analysis of clays and clay minerals” will take place from 11th to 15th September at the FGK - Forschungsinstitut für -Glas/Keramik in Höhr-Grenzhausen and the WesterWaldCampus of the Koblenz University of Applied Science. Information regarding registration and meeting can be found on the DTTG-Homepage: www.dttg.ethz.ch. The workshop focuses on the needs of graduate students in the field of clay science but is also open for scientists and people working in industry who are interested in clay science. The deadline for registration is approaching soon: May 31st 2023. Kind regards Michael Plötze ------------------------------------------------------------- ETH Zurich Dr. Michael Ploetze Institute for Geotechnical Engineering, ClayLab www.claylab.ethz.ch