Timed to 500th anniversary of Leonardo's death.
Authors' documentary based on this book running on PBS in May 2019.
Authors' prior documentary achieved over 70% carriage on PBS and was viewed in 24 million households.
Documentary contains "Based on the book" graphic and ends with 29-second ad for the book.
Book cover will have burst "As seen on Public Television."
Proven primary author of 13 titles that have scanned over 70, 000 copi...