Johnson's best known albums include his debut Dread Beat An' Blood, Forces of Victory, Bass Culture and Making History. Across these albums are spread classics of the dub poetry school of performance - and, indeed, of reggae itself - such as Dread Beat An' Blood, Sonny's Lettah, Inglan Is A Bitch and Independent Intavenshan. Johnson was a prescient man and his track All Wi Doin Is Defendin accurately predicts the Brixton riot (1981).
Johnson's record label LKJ Records is home to other reggae artists, some of whom made up The Dub Band, with whom Johnson mostly recorded, and other Dub Poets, such as Jean "Binta" Breeze.
Of late, Johnson has only performed live on an intermittent basis, perhaps a result of modern reggae's shift towards more spontaneous and rapid-fire performers of raggamuffin or dancehall.