I own several. My most prized one was actually not written for me, but was inherited from my Great Aunt Ruby who was a fellow fan of Agatha Christie. She wrote Christie about Egyptology (Christie was married to an Egyptologist) in her books, and Christie wrote her a letter back. I have it in my safe. I also have autographs from people such as David Suchet, Edward Hardwicke, Baseball World Series Champion with the 1967 Pirates Bill Maddock, and a letter from late Canadian Prime Minister Pierre Elliot Trudeau he wrote to my Grandmother on her 75th birthday. Grandma is still alive, but she gave me the letter years ago.