Anatomy and perspective were studied in combination by Leonardo da Vinci who explored methods of transparency, cutaways and exploded views in order to render visible various layers of skin and tissue. Largely because these techniques were too complex for the printing methods of his day they were not published. In the late sixteenth century Cousin, le jeune (1595, etc.) published on the human body and perspective. But anatomy and perspective tended to go separate ways. An exception was Cheseldon (1733) who used perspective in anatomy. In the past decades there has been a trend to deal with anatomy and perspective together.