4. Pietà is the only work Michelangelo ever signed. If you look closely, the sculptor’s signature can be found across Mary's ...

Ensuring artists get credit for their digital work will accelerate many creative careers, says Adobe's Scott Belsky.

The book cover of ‘Our Lady of the World’s Fair’ by Ruth D. Nelson, with a detail of Michelangelo’s 1499 Pietà at St. Peter’s Basilica in Rome (photo: Cornell University Press ...