Author Terry Pratchett reveals he has Alzheimer's

You may have already heard this, but those fans of the Discworld author who haven't been told yet will be sorry to hear that he's been diagnosed with a rare form of early onset Alzheimer's.

Pterry wrote a statement on the website belonging to his illustrator Paul Kidby describing the condition as "an embuggerance" but facing it with his classic optimism: "this should be interpreted as 'I am not dead'" - he hopes to meet all current and future commitments.

Statement is here [thanks to Steven Gaythorpe, and The Guardian ]