Keyword searches are fine but searching by subject can be pretty powerful and useful. The PUL uses Library of Congress Subject Headings, with an established structure and format. The dashes indicate the subdivisions or sub-headings--for medium, geography, time period, etc.--but it’s not necessary to type them when searching by subject (can skip commas too), and the catalog allows one to browse additional results using any portion of the subject term.
Use Subject (browse) or Subject (keyword) when searching these terms in the library catalog.
There are MANY subject terms beginning with MEXICO, followed by terms from A to Z, like:
Art; Buildings, Structures, etc.; Civilization--20th Century (and other); Cultural Policy; Description and Travel; Historia; History (by time period and other sub-headings), etc.
There's also MEXICO--HISTORY--REVOLUTION, and MEXICO--HISTORY--SOURCES to mean primary sources; [Mexico, Mexico City] IN ART; Intellectual Life; Race Relations; Social Conditions; Social Life and Customs; Social Policy, etc.
MEXICO--20TH CENTURY (and sub-headings)
ART--MEXICAN: 1600+ items attached. Can click on this term, "edit search" at top and add a keyword of your choice to the search. Many sub-headings by century, exhibitions, etc. There's also:
ARCHITECTURE--MEXICAN
MOTION PICTURES--MEXICAN
PRINTS--MEXICAN
MURAL PAINTING AND DECORATION--MEXICAN
POSTERS--MEXICAN, etc.
Then, any PERSON (Last Name, First Name) or MOVEMENT or GROUP or EVENT or PLACE etc. can be a subject term: e.g. RIVERA, DIEGO, 1886-1957 (and sub-headings).
See also:
Expatriate architects--Mexico
Expatriate artists--Mexico