BBC News - Sir Terry Pratchett, renowned fantasy author, dies aged 66
Fantasy author Sir Terry Pratchett has died aged 66, having had Alzheimer's disease for eight years.
"The world has lost one of its brightest, sharpest minds," said Larry Finlay of his publishing company, Transworld.
Best known for the Discworld series, Sir Terry wrote more than 70 books over his lengthy career.
He was first diagnosed with Alzheimer's in 2007, but continued writing, completing his final book last summer.
The author died at home "with his cat sleeping on his bed, surrounded by his family," Mr Finlay said.
"In over 70 books, Terry enriched the planet like few before him," he added.
"As all who read him know, Discworld was his vehicle to satirize this world: He did so brilliantly, with great skill, enormous humour and constant invention.
"Terry faced his Alzheimer's disease (an 'embuggerance', as he called it) publicly and bravely. Over the last few years, it was his writing that sustained him. His legacy will endure for decades to come.