The author publicly suffered with posterior cortical atrophy, a variation of Alzheimer’s, which he was diagnosed with in 2007.
Pratchett’s output was prolific, writing over 70 books, including 40 as part of the fantasy Discworld series. His novels sold over 85 million copies in his lifetime. Here we look back at his career:
Terry Pratchett's career in pictures
1998 - Pratchett with his daughter Rhianna
Terry Pratchett: A career in quotes
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1998 - With his OBE
2000 - Launching his 25th 'Discworld' novel
Terry Pratchett in 2000
2008 - At Number 10 delivering a petition on behalf of the Alzheimer's Research Trust
Terry Pratchett in 2008
2009 - Being knighted for services to literature
Pratchett in Feb 2009
2009 - With the sword he forged from scratch
2012 - At the World Federation of the Right-to-Die Societies congress in Zurich
Pratchett in Zurich, 2012
2013 - With his trophy pig after winning the Everyman Wodehouse Prize for Comic Fiction at Hay-on-Wye
Pratchett in 2012
2014 - Supporting the Dementia Friends campaign
Terry Pratchett supporting the Dementia Friends campaign
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