Leonardo da Vinci was not only one of the earliest European abstractionist, but also a sculptor, an architect, and an engineer.

达•芬奇不仅是欧洲最早的抽象派画家之一，他还是雕塑家，建筑学家和工程师。

This thesis attempts to discuss Andy Warhol in following aspects: Why did he turn from abstractionist art into pop art; and what were the factors that influenced his painting style?

沃荷为何以普普艺术为出发，从抽象主义的艺术转入普普艺术，是什麽影响及改变了他的绘画风格？