information:filtering, structural:scholar_edition
Other works

Knuth is also the author of Surreal Numbers, a mathematical novelette on John Conway 's set theory construction of an alternate system of numbers. Instead of simply explaining the subject, the book seeks to show the development of the mathematics. Knuth wanted the book to prepare students for doing original, creative research.

In 1995, Knuth wrote the foreword to the book A=B by Marko Petkovšek, Herbert Wilf and Doron Zeilberger. He also occasionally contributes language puzzles to Word Ways: The Journal of Recreational Linguistics.

Knuth has delved into recreational mathematics. He contributed articles to the Journal of Recreational Mathematics beginning in the 1960s, and was acknowledged as a major contributor in Joseph Madachy 's Mathematics on Vacation.

Knuth also appears in a number of Numberphile and Computerphile videos on YouTube, where he discusses topics from writing Surreal Numbers to why he does not use email.