The idea behind the summer/winter school program is to bring together motivated students, post-graduates, and software developers with prominent world-class researchers. One particular topic is studied at each school, which allows the participants to immerse in intensive study and complete an extensive course, which could easily be a semester-long, in three to five days.
The subject for a school is usually announced 1-2 months in advance. The attendees are expected to be senior students, post-graduates, researchers, software developers. Attendance is by registration, but free of charge, with 10 to 30 places available.