This large cordiform modern world map, published in the first Venetian edition of Ptolemy, is only the second map in a Ptolemaic atlas to show America, and the first western printed map to indicate Japan. "The capital letters are printed in red by means of type set into the woodblocks which, together with the decorative windheads, zodiacal signs, and distinctive heart-shaped projection, make this a most striking representation.... Sylvanus' map was not reprinted and hence remains relatively scarce. His new heart-shaped projection was, however, adapted by several later cartographers and used for a number of important maps throughout the sixteenth century" (Shirley).