This photo book has been published exactly 20 years after OT301 in Amsterdam was squatted. This stream of about 700 photos is an archive as well as an atempt to capture a bit of all the energy that has been flowing through the building. OT301 is a nonprofit project in which public functions, work spaces and housing are combined to contribute to the fields of art, politics and subculture. The project is run by a diverse, international community that organises itself in an association called EHBK (Eerste Hulp Bij Kunst / First Aid in Case of Art). Having started as a squat in 1999, OT301 today is collectively owned and committed to the values of autonomy and self-organization.