Materials for the Larch workshop at the 2021 Virtual XAFS Conference Please download and install Larch 0.9.53 or higher from https://xraypy.github.io/xraylarch/installation.html and find course materials at https://millenia.cars.aps.anl.gov/data/xraylarch/Workshops/2021Virtual Pre-recorded Videos for this workshop are at: https://www.youtube.com/playlist?list=PLgNIl_xwV_vK4V6CmrsEsahNCAsjt8_Be