English entrepreneur and programmer known for his work in the LISP family of computer programming languages and as the co-founder of what would become the Yahoo! Store. He is the author of programming books like 1993's On LISP and 2004's Hackers & Painters.
He earned Master of Science and Doctor of Philosophy degrees from Harvard University.
He was named one of the 25 Most Influential People on the Web by BusinessWeek in 2008.
He married author and businesswoman Jessica Livingston in 2008.
He and John McAfee are two of England's most famous programmers.