Author Terry Pratchett has been diagnosed with a rare form of Alzheimer's Disease and has donated half a million English pounds to Alzheimer's research.
If you've read Pratchett's hilarious fantasy novels, which satirize everything from the Iraq war to the the post office, you know what a loss it will be when the disease finally takes control of his brilliant brain. Where else can you find a mysterious, occasionally vicious sentient suitcase, a troll policeman, and an orangutan librarian? Check out Wyrd Sisters to meet some of the coolest witches on earth, and Death's apprentice in Mort.
Want to help? Head on over to Match it For Pratchett, where you can click and donate to match Pratchett's own donation to Alzheimer's research, which is apparently fastly underfunded. Who knew?