Dialogo di M. Lodovico Dolce, nel quale si ragiona del modo di accrescere e conseruar la memoria
Dialogo by Lodovico Dolce, printed in Venice in 1562 by the Sessa brothers, is a 16th-century Italian treatise on memory training, aimed at scholars and readers of Italian. Its pages are woodcut plates of letter-keyed mnemonic images: alphabet grids, circular emblem roundels with a letter beside each object, and simple cut-out symbols such as bells, croziers, bulls, wheels and barrels, which a designer could adapt as dense, systematic icon sets.
