The European Space Agency’s Infrared Space Observatory (ISO) was an infrared space-borne observatory open to the general astronomical community. It provided sensitive and flexible imaging, photometric, polarimetric and low-mediumhigh resolution spectroscopic capabilities over a wide wavelength range from 2.5240µm. During its highly-successful operational lifetime, it made some 30000 individual pointed observations. All data are now in the public domain and can be retrieved from the ISO Data Archive at ‘www.iso.vilspa.esa.es’. A summary of the mission –including some of its highlights– is presented, followed by a description of current activities designed to help the community exploit the ISO archive.