More or Less is an investigative BBC Radio 4 programme about the accuracy of numbers and statistics in the public domain. The programme often addresses statistical issues which pertain to topics in the news. The programme was created in 2001 by as a one-off series of six programmes presented by Andrew Dilnot. The positive response to the show led to its becoming a regular programme, first with two series a year and since the winter series of 2008–2009, with three. Guests of the show have included Professor Sir Angus Deaton, Mark Lynas, , and Professor Sir Richard Blundell.