Casey Reas is an American artist and educator known for his work in the field of computer programming and visual art. He is one of the co-founders of Processing, a programming language and environment designed for artists and designers to create visual art through code. Reas has contributed significantly to the intersection of art and technology, exploring how software can be used as a medium for artistic expression. In addition to his work with Processing, Reas is a professor at the University of California, Los Angeles (UCLA), where he teaches courses on digital art and design. His artwork often involves generative processes, where algorithms create unique visual outputs. Reas has exhibited his work internationally, showcasing the potential of programming as a creative tool.