To celebrate our Street Photography Award, open for entries until the end of the month, we've assembled a collection of 20 photographers, from across the medium's history, whose captivating images encapsulate the very essence of this unique genre.

Though not a household name, Flavio Cannalonga was one of the most discerning photographers of his time, a profoundly perceptive humanist, whose deeply absorbing, monochrome images distill the unique essence of his homeland.