In May 2023 the third Advanced School on Scanning Transmission Electron Microscopy, AdSTEM3 was organized in Piran. The workshop was targeted at doctoral students, post-doctoral researchers and also already experienced microscopists and covered various topics on 4D STEM imaging. The conference included invited lectures by renowned professors. Emphasis was on the implementation and applications of various techniques resulting from sensitive direct electron detectors. 4D STEM, data-evaluation approaches and the choice of the appropriate evaluation software were presented. More information about the conference is available at the link.