"Dear Mr. Knightley" is a contemporary novel by Katherine Reay that reimagines the classic story of Jane Austen's "Emma." The story is told through letters written by the protagonist, Samantha Moore, who is a bookish young woman navigating her life and relationships. Set in modern times, the novel explores themes of love, friendship, and self-discovery. As Samantha corresponds with the enigmatic Mr. Knightley, she reflects on her past and learns valuable lessons about herself and her connections with others.