Dear all, The registration for the next edition of the Macromolecular Crystallography School in Madrid from the 8th to the 12th of May 2023 is open. The workshop has been organized at Instituto de Química Física Rocasolano CSIC since 2010 and it is meant for 25 graduate students or researchers with previous expertise in crystallography and/or CryoEM who need a deeper insight into the most advanced crystallographic and CryoEM techniques to carry out their research projects. The program traditionally covers aspects such as sample preparation, structure solution, model building, crystallographic refinement, validation, and analysis of the structural results, as well as an overview of the newest structural biology technologies. On top of these subjects, this year's program will include those aspects related to the impact of Artificial Intelligence methods on structure solution and low-resolution refinement. In addition, we will cover dynamic crystallography at XFEL and synchrotron and ligand building for drug discovery. You may find further information on our website (https://www.xtal.iqfr.csic.es/MCCS2023/index.html https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.xtal.iqfr.csic.es%2fMCCS2023%2findex.html&c=E,1,_6Q8g0pWDL046-LZ44gvaksBnMuEWPEnWs6dSM5ITyKFmfGLAZ-wAw4EL1OnPKfrAoDf9Hb1ndh68dyB4NhRkcMi2E59E10oYdB7mBQqlSCr&typo=1) Hoping to see you In Madrid Juan and Armando Armando Albert and Juan A. Hermoso Departamento de Cristalografía y Biología Estructural Instituto de Química Física "Rocasolano", Consejo Superior de Investigaciones Científicas Serrano 119, 28006 Madrid Spain