After three successful editions, the PhasAGE consortium is pleased to announce the fourth Training School on “Protein Aggregation, Intrinsic Disorder, and Phase Separation in the Era of Machine Learning.” The event is co-organized by the H2020-funded Twinning project PhasAGE (GA 952334), the H2020-funded MSCA project IDPfun (GA 778247), and the COST Action “Non-globular proteins in the era of machine learning—ML4NGP” (CA21160) and will take place at i3S, the PhasAGE coordinating institution, in Porto (Portugal).