Ebba Christina Blåvarg’s dissertation Psychology on the Schedule (Psykologi på schemat) is the first comprehensive analysis of the psychology school subject in Swedish upper secondary schools. Today, psychology is the largest non-compulsory school subject at the upper secondary level in Sweden, measured by the number of students who receive grades in the subject. Although the subject has been part of the national upper secondary school (gymnasieskolan) since 1965 and has continued to be part of it through various reforms, a historical review of the psychology subject has been lacking until now.Blåvarg’s dissertation fills this gap by offering an in-depth analysis of how the psychology subject has developed and been shaped over time. By examining three different discursive practices where the discourse about the psychology subject has been present, the dissertation provides a comprehensive picture of the subject’s history and its role in Swedish upper secondary schools.