Leonardo da Vinci    by TempleofMysteries.com 
Price: $3.68 USD. 17460 words. Published on January 25, 2012. .
One of the truly great minds of all time, the 15th-century Italian artist Leonardo da Vinci was uncannily ahead of his time, giving the world not only the Mona Lisa and his other extraordinary works of art, but also designs for a helicopter, military tank, submarine, bicycle - and even the sewing machine - among many other incredibly advanced innovations.

Da Vinci's Clock    by Bud Seligson
Price: $2.99 USD. 38080 words. Published on April 9, 2012. .
Da Vinci's Clock explores the early years of the greatest genius of all time, Leonardo Da Vinci. Brought to life are his many inventions in an action packed adventure full of love and lust and a hot sizzling affair with Mona Lisa.Leonardo is a cocksure adventurer who uses equal parts of muscle and brain power to become the military engineer to the rich and powerful.

A Borgia Daughter Dies    by Maryann Philip
Price: $0.99 USD. 74290 words. Published on April 13, 2012. .
The saga of the Borgias and the lives of Leonardo da Vinci and the young Machiavelli form the accurate historical background of this murder mystery, set in the opulence of Renaissance Rome and Milan. Machiavelli's illegitimate daughter and his bewitching ex-mistress will solve three murders with help from da Vinci and Lucrezia Borgia--including the murder of Lucrezia's real-life half sister.