This 10-day workshop consists of lectures blended with hands-on sessions designed to introduce users to or advance skills in materials modelling with WIEN2k (a solid-state density-functional theory package). The event targets graduate students, early-career scientists, experienced users. The WIEN2k code is one of the most accurate density functional theory (DFT) codes for solids and can be applied to all elements of the periodic table; it is currently the most popular all-electron DFT code for solids. Many materials characteristics can be calculated, ranging from the basic ones, such as the electronic band structure or the optimized atomic structure, to more specialized ones such as the nuclear magnetic resonance shielding tensor, the electric polarization, band topology. This event includes lectures that provide basic foundation, scientific talks that highlight illustrative examples on application of DFT to solving specific materials problems, and hands-on tutorials designed at the basic and advanced levels.