The Emerging Genomic Landscape of Complex Immune-Mediated Traits, Volume 114 in the Advances in Genetics series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of timely topics, including Unraveling the Interplay of Genetic Variants and Epigenetic Signatures in Complex traits, Crosstalk between T Cell Gene Regulation and Intestinal Epithelial Cells: Insights into Mucosal Immunity, Understanding the link between regulatory RNA regions and genomic variation with coeliac disease, Interplay Between the Host Genome, Autoimmune Disease and Infection, and Organoids and gut-on-chip as powerful tools to model the genetics of intestinal mucosal inflammation.