The Independent Study Unit (ISU) offers students the option to replace one of their taught modules (excluding the compulsory modules) with an ISU. ISUs offer a period of directed, but independent reading in an area chosen by the student and in which the department is able to provide supervision. The module gives students the chance to determine their own area of research with their supervisors. The module is then assessed by a researched essay on the mutually-agreed topic of research.