Piercy's work has received recognition nationally and internationally via numerous awards and exhibitions. She has exhibited worldwide in galleries such as the Royal Academy, London; the Museum of Modern Art, Dublin; Pallazzo Poli, Rome; Museo Nacional del Grabado, Argentia; Cite Internationale des Arts, Paris, and the Donna Beam Gallery, Las Vegas to name some. A one-person show, 'Foreign Bodies' was featured as part of the visual art programme for the Galway International Arts Festival in 2015. She has received awards from the Royal College of Art, London; the British School at Rome, the International Print Triennial in Cracow, Poland; the Printmakers Council of Britain; amongst others. Her work is represented in major collections throughout the world- the Ashmolean, Oxford; the Instituto Nationale Per la Grafica, Rome; Churchill College, Cambridge; Arts Council of Ireland; Columbus College, U.S.A.
In art education, she has worked as a lecturer, visiting artist/resident, at various Institutes including Paderborn University, Germany; Columbus College, U.S.A.; The University of Nevada, U.S.A.; The University of West of England; The Crawford College of Art, Cork and the Centre of Creative Arts and Media, Galway, Ireland where she was head of Fine Art Printmaking from 2003 to 2018.
She was made a fellow of the Royal Society of Printmakers (RE), London in 2020.
She lives and works in Athenry in the West of Ireland.