Most students take a minor as part of their Bachelor's degree programme. In the last academic year, the Leiden-Delft-Erasmus universities opened all their broad-based minors to each other’s students. This was a significant step towards achieving an important aim: to broaden their curricula and make their programmes more accessible to students from the partner universities. Broad-based minors are intended for students from different study programmes and do not require specialist prior knowledge. Two thirds of the places in the minors at each university are reserved for the university’s own students and one third for ‘guest students’, who must apply in May.