Sir Terry Pratchett
Terry Pratchett is one of the most popular authors writing today and is the creator of the bestselling Discworld series. He has written around fifty books and co-written a further fifty. Between them they have sold over 65 million copies in thirty-seven languages. His latest is Snuff.
In 1998 he was awarded an OBE and in the 2009 New Year's Honours List he was appointed a Knight Bachelor for services to literature.
In December 2007, Terry released a statement that he had been diagnosed with a rare form of early-onset Alzheimer's disease. Since then, he has become Patron of The Alzheimer's Research Trust. He is a strong supporter of assisted suicide being made legal in the UK.
He also campaigns for the Orang-Utan Foundation. His website is here.