Terry Pratchett, who earned acclaim for his "Discworld" science fiction series, died Wednesday at the age of 66. He had been diagnosed with Alzheimer's disease seven years ago.
“I was deeply saddened to learn that Sir Terry Pratchett has died. The world has lost one of its brightest, sharpest minds," Larry Finlay of Transworld Publishers said in a statement published on Pratchett's website.
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