They graduated from the Academy of Fine Arts in Krakow in 1954. Visual artists, designers, outstanding representatives of the Polish avant-garde and conceptual trend. In addition to their individual work, they performed many works together, the most important of which were: "AB METR" (1970), "Transformation" (1972), "Objective landscape" (1973), "Synchron" (1977), "Bielszy Than Snow" (1978). ), "In" (1979), "3 I said to them" (1983).

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They took part in group and problem exhibitions, symposia and artistic meetings. They were initiators, organizers and participants of the Meetings of Artists and Art Theorists in Osieki (1963–1981). These open-air sessions initiated subsequent meetings of the Polish avant-garde movement.

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Individual works from the 1960s are geometric abstract compositions. In the 1970s and 1980s, they explored the phenomena of perception,  , the relationship between the concept, myth and reality, the transmission of information (the relationship between fiction and reality and psychological determinants of perception). They raised ecological issues both in the proposed urban solutions (SEN system) and in the postulates of savings  of the artistic media (Jerzy Fedorowicz's theory of low activity developed since 1975).

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Their works are in the collections of, among others The Museum in Koszalin, the National Museum in Warsaw, the National Museum in Wrocław, the National Museum in Kraków, the Museum of Architecture in Wrocław, the Museum of Contemporary Art in Łódź, the Chełm Land Museum in Chełm.

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“Ludmiła Popiel and Jerzy Fedorowicz reluctantly solicited   for exhibitions, catalogs or any other form of promotion. The creative process itself was enough for them, and the rest - including documentation and interpretation - were left to art historians and critics. The works and ideas of Popiel and Fedorowicz - formulated four and five decades ago - resonate very strongly with the key problems of the present day ”(Kuźmicz, 2019).

The extent to which the artists' legacy will be read and subjected to reflection depends on those living in this contemporary time.