Most Guinness World Records books stacked on a shelf in one minute

Most Guinness World Records books stacked on a shelf in one minute
Who
Charles Morris
What
123 total number
Where
United States (Los Angeles)
When
On 30 April 1999, Charles Morris of Valley Centre, California, USA, stacked in one minute, 123 copies of The Guinness Book of Records 1999 onto a standard bookshelf at Book Expo '99, Los Angeles Convention Center, California, USA.