Andis' Ivan Zoot is featured in the latest edition of The Guinness Book of World Records 2010, on sale now, for his record-breaking haircutting session in Austin, Texas. His records are mentioned in the Human Achievements In A Day section, titled Consecutive haircuts, page 89: "
The most consecutive haircuts in 24 hours by an individual is 340 and was achieved by Ivan Zoot (USA) at Men's Grooming Center in Austin, TX (USA) on August 22-23, 2008. During the course of the day, Ivan also broke the Guinness World Record marks for the fastest single haircut (doing so 8 times, finally achieving a record time of 55 seconds and most haircuts in one hour (34)."