The National Gallery of Art presents the Gemini G.E.L. (Graphic Editions Limited) online catalogue raisonne, a listing of prints produced at this Los Angeles studio from 1966 through 1996. At Gemini, artists including Robert Rauschenberg, Ellsworth Kelly, Jasper Johns, David Hockney, Sam Francis, Roy Lichtenstein, Jonathan Borofsky, and Richard Serra worked with master printers to produce editions of prints. Initially the online catalogue raisonne seems difficult to browse, but the search area provides drop-down boxes for artists' names, dates, and series titles, so without prior knowledge that Frank Stella worked at Gemini, one can still retrieve 93 Stella prints. In the essay section, users can read a series of illustrated sections on the history of Gemini, individual artists, and decades, and link to larger images. The guide section explains the metadata fields in each catalog record, such as artist, series, title, and less obvious aspects such as "support," which refers to the support each print is on, almost always paper, or start date (year the artists began collaborating with Gemini) vs. signature date (year the artist signed the edition) vs. publication date (year the edition was made available).