There are many specialized encyclopedias and dictionaries covering specific aspects of modern art. Some are stand-alone publications while others are briefer and found in monographs or catalogs. Use the following search strategy to quickly check for any related to your topic: [your keyword] and (encyclopedia* or dictionar*).
For example: keyword = surrealis* and (encyclopedia* or dictionar*)
Generate additional keywords by browsing Related Subjects under subject headings like Art Modern 20th century. Subjects headings are controlled vocabulary and used consistently throughout many databases including OBIS. Once identified they can be recombined for customized results.
Broad subject headings
Art, Modern
Modernism (Art)
Art, Modern -- 20th century [or 21st century]
Specific movements, styles, genre:
Dadaism
Impressionism (Art)
Neo-impressionism (Art)
Postmodernism
Additional subjects for 49 movements, styles and concepts related to modern art