Type spaces: in-house norms in the typography of Aldus Manutius

The books of Aldus Manutius possess an enduring appeal, for their sense of order and visual-semantic structure. After intensive examination of some Aldine books, Burnhill proposes a hypothesis about the co-ordination of the dimensions in type in this printing. It seems that a system of typographic measurement informed this work, two hundred years before such a system was made explicit in printing.