The Cat Who Came for Christmas, The Cat and the Curmudgeon, and The Best Cat Ever by Cleveland Amory.  These 3 books tell the story of the authors love of a cat he named "Polar Bear" because of his all white coat.  This self confessed dog lover reluctantly takes on this little white ball of fur that he rescues from the streets of New York on Christmas Eve.  Mr. Amory's cat becomes famous and meets everyone from Cary Grant to Walter Cronkite. Polar Bear reluctantly attends the authors reunion at Harvard University.  This is a true love story between man and cat.