›2015 VLTI School

In the last decade, optical/infrared long-baseline interferometry has reached a new stage with the advent of multi-telescope arrays accessible to a broad community of astronomers. The Very Large Telescope Interferometer (VLTI) built in Chile and operated by the European Southern Observatory (ESO) is the best example of a fully open and operational interferometric facility. The instruments AMBER, MIDI and PIONIER have delivered so far spectacular results in many fields of astrophysics.