Novelist Pratchett receives knighthood

Terry Pratchett has received a knighthood for services to literature.

The novelist, best known for the Discworld series, was made a Sir at a ceremony at Buckingham Palace after being named in the New Year Honours list.

Pratchett, 60, has sold over 55 million copies of his fantasy books worldwide and is the UK's best-selling novelist of the 1990s.

The author was diagnosed with Alzheimer's disease in 2007 and has since taken part in a BBC documentary to raise awareness of the condition.