Rumney was an English New Realist and one of the founders, along with Guy Debord and Piero Simondo, of the Situationist International.
In Alba, Piedmont, Italy, with Asger Jorn and Giuseppe Pinot Gallizio he founded the Laboratory of immaginiste experiences as part of the International Movement for an Imaginist Bauhaus (IMIB).
Piero Sraffa | Piero Manzoni | Piero della Francesca | Piero de' Medici | Alessandro Del Piero | Piero Scaruffi | Piero Taruffi | ''The Baptism of Christ'', by Piero della Francesca | Piero Sicoli | Piero Gleijeses | Piero di Puccio | Piero Corti | Piero Angela | Gian Piero Reverberi | San Piero a Sieve | Piero Tosi | Piero Strozzi | Piero Simondo | Piero Piccioni | Piero Niro | Piero Marini | Piero Mariani (musician) | Piero Malvestiti | Piero Lissoni | Piero Folli | Piero Ferrari | Piero Fassino | Piero di Cosimo de' Medici | Piero Dente | Piero Della Francesca |