Jasper Johns (b. 1930), one of today's most acclaimed and influential artists, is rarely considered in relation to monochromatic art. Yet single-colour experimentations have figured prominently in his productions since 1955, and within that significant subset of his work, the majority of monochromes are grey. In fact, every one of his iconic, serialized forms has been articulated in grey. This elegant book, spanning Johns' full career, examines this singular preoccupation, presenting a revolutionary new understanding of and appreciation for the artist as an accomplished tonalist.