Question:
Leonardo di ser Piero da Vinci (Italian: [leo'nardo di ,ser 'pje:ro da (v)'vintSi] ( listen); 15 April 1452 - 2 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian Renaissance polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. Sometimes credited with the inventions of the parachute, helicopter and tank, he epitomised the Renaissance humanist ideal.
In 1466, at the age of fourteen, Leonardo was apprenticed to the artist Andrea di Cione, known as Verrocchio, whose bottega (workshop) was "one of the finest in Florence". He apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day (and would do so for 7 years). Other famous painters apprenticed or associated with the workshop include Domenico Ghirlandaio, Perugino, Botticelli, and Lorenzo di Credi. Leonardo would have been exposed to both theoretical training and a vast range of technical skills, including drafting, chemistry, metallurgy, metal working, plaster casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling. Much of the painted production of Verrocchio's workshop was done by his employees. According to Vasari, Leonardo collaborated with Verrocchio on his The Baptism of Christ, painting the young angel holding Jesus' robe in a manner that was so far superior to his master's that Verrocchio put down his brush and never painted again, although this is believed to be apocryphal. Close examination reveals areas that have been painted or touched-up over the tempera using the new technique of oil paint; the landscape, the rocks seen through the brown mountain stream and much of the figure of Jesus bearing witness to the hand of Leonardo. Leonardo may have been the model for two works by Verrocchio: the bronze statue of David in the Bargello and the Archangel Raphael in Tobias and the Angel. By 1472, at the age of twenty, Leonardo qualified as a master in the Guild of Saint Luke, the guild of artists and doctors of medicine, but even after his father set him up in his own workshop, his attachment to Verrocchio was such that he continued to collaborate with him. Leonardo's earliest known dated work is a drawing in pen and ink of the Arno valley, drawn on 5 August 1473.
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Who else

Answer:
Lorenzo di Credi.

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Macaulay Carson Culkin was born in New York City. His father, Christopher Cornelius "Kit" Culkin, is a former actor known for his productions on Broadway and is the brother of actress Bonnie Bedelia. His mother is Patricia Brentrup, who never married Culkin. He was named Macaulay after Thomas Babington Macaulay and Carson after Kit Carson of the Old West.
In the spring of 2003, he made a guest appearance on the NBC sitcom Will & Grace. His role as Karen Walker's deceptively immature divorce lawyer won him favorable reviews. Culkin headed back into motion pictures in 2003 with Party Monster, in which he played a role very different from those he was known for; that of party promoter Michael Alig, a drug user and murderer. He quickly followed that with a supporting part in Saved!, as a cynical wheelchair-using, non-Christian student in a conservative Christian high school. Though Saved! only had modest success at the box office, Culkin received positive reviews for his role in the film and its implications for a career as an adult actor. In 2004, he appeared in the music video for the song "Sunday" by the rock band Sonic Youth. Culkin began doing voice-over work, with appearances in Seth Green's Robot Chicken. In 2006, he published an experimental, semi-autobiographical novel, Junior, which featured details about Culkin's stardom and his shaky relationship with his father. Culkin starred in Sex and Breakfast, a dark comedy written and directed by Miles Brandman. Alexis Dziena, Kuno Becker and Eliza Dushku also star in this story of a couple whose therapist recommends they engage in group sex. Shooting for the film, Culkin's first since Saved!, took place in September 2006. The film opened in Los Angeles on November 30, 2007 and was released on DVD on January 22, 2008 by First Look Pictures. Culkin's next project was a role in the thirteen-episode NBC television series Kings as Andrew Cross. In 2009, Culkin appeared in a UK-based commercial for Aviva Insurance (formerly Norwich Union) to help promote their company's rebranding. Culkin stared into the camera stating, "Remember me." On August 17, 2009, Culkin made a brief cameo appearance on WWE Raw at the Scottrade Center in St. Louis, Missouri, following a "falls count anywhere" match between Hornswoggle and Chavo Guerrero, in which Guerrero was defeated by the classic Home Alone gag of rigging a swinging paint can to hit him upon opening a door. Culkin appeared in the doorway and said, "That's not funny." In February 2010, Culkin appeared in an episode of Poppy de Villeneuve's online series for The New York Times, The Park. On March 7 of the same year, he appeared alongside actors Matthew Broderick, Molly Ringwald, Judd Nelson, Ally Sheedy, Anthony Michael Hall, and Jon Cryer in a tribute to the late John Hughes.

What was the novel about?
semi-autobiographical novel, Junior, which featured details about Culkin's stardom and his shaky relationship with his father.