The Guggenheim museum recently digitized and released 65 catalogs about artists, with pictures, from its publications archive at
www.guggenheim.org/new-york/exhibitions/publications/from-the-archives.
You have can also download them at Archive.org:
www.archive.org/details/guggenheimmuseum
For more information, read Free: The Guggenheim Puts 65 Modern Art Books Online at Open Culture.