Passage: The ICCROM library is one of the world’s leading sources of information on the conservation and restoration of cultural heritage. It contains more than 115,000 registered references and 1,800 specialized journals in more than 60 languages. In addition, the archive contains institutional records that date back to ICCROM’s creation, as well as over 200,000 images of cultural heritage worldwide in relation to ICCROM’s scientific and educational activities. The website is a portal to comprehensive information about courses, activities, international events, and employment and training opportunities in the conservation field.

Question: What field does the website act as a portal for?
comprehensive information