Dig into the International Center for the Arts of the Americas (ICAA) This rich archive of primary source documents related to all aspects of Latin American and Latino Art is an essential research source. You may also access a wide range of publications based on the materials in the collection. The archive is hosted by the Museum of Fine Arts, Houston (MFAH). Registration for an account is free. Check it out!
Many of the documents are in Spanish (also some in Portuguese, French, etc.). If you are not a Spanish-reader: dig in anyhow and look at the primary source materials associated with artists in whom you are interested — many sources are illustrated. Be an intrepid researcher! You may find images here that are not available elsewhere. And, many of the ICAA’s publications are in English. Search these secondary sources. You’ll see smart scholarship at work.