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.
As well as the 30-minute Radio 4 programme, there is also a nine-minute BBC World Service edition that runs throughout the year.
In 2007, Blastland and Dilnot published a related book, The Tiger That Isn't: Seeing Through a World of Numbers about misuse of statistics.
Guests of the show have included Angus Deaton, Mark Lynas, Hannah Ritchie, and Richard Blundell.