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"MetPublications is an online portal to The Metropolitan Museum of Art's comprehensive art publishing program... Each publication’s unique record includes links to artworks in The Met Collection that are featured in the book. These connections allow readers to discover recent scholarship and further resources on each object's Collection page. Publication records also include the title's description, table of contents, author bios, reviews, awards, information on any accompanying exhibitions, links to related essays on the Heilbrunn Timeline of Art History, links to related titles by author and subject, and links to facilitate access to physical copies of the publication, including library resources such as WATSONLINE and WorldCat.
These resources would be helpful to learn about techniques, time periods, and the art work of specific cultures. Two helpful search features are the Thematic category and Collection/Department.
Heilbrunn Timeline of Art History
The Heilbrunn Timeline of Art History includes timelines to show continuity and breakthroughs, essays about art, artists, and art styles to better contextualize the item within history and art history. The site offers over 1,000 essays, a selection of more than 8,000 works, and chronologies from across time and the globe. While these pieces are not in Princeton's collection, it is likely that you will be able to find an item that is similar to your piece and could be useful to your assignment.
In adidition to text resources, the Metropolitan Museum of Art also creates video content. Linked here is the playlist section of the page that includes lectures, talks, and video content like behind the scenes and exhibition content.