Scientists from the PsychENCODE Consortium have analyzed the brain transcriptome in a coordinated series of studies to map all the cell types, genes, epigenetic factors, and molecular pathways involved in different psychiatric disorders. After a first set of projects based on bulk analysis, the second phase of this project included 14 simultaneous publications that revealed the cellular atlas of post-traumatic stress disorder (PTSD) and major depressive disorder (MDD), among others.