This research school, which is exclusively dedicated to young researchers (PhD students, post-docs…), focuses on this research topic. The goal is to bring together young people working on iterative methods for PDEs, in order to offer them an opportunity to meet each other, to discuss their research works and also to initiate new collaborations. The scientific program of this two-day event is divided into four thematic blocks: Time Parallelism, Domain Decomposition, Krylov Methods and Multigrid Methods. Each block lasts half a day and is composed of an introductory mini-course on the topic, followed by two advanced presentations.