To mark 100 years since Agatha Christie penned her first novel, Royal Mail has unveiled a series of stamps for fans of the writer.
Six designs have been released that celebrate Christie’s famous novels, including Murder on the Orient Express and A Murder is Announced.
Each stamp also contains a single letter that spells out a significant word, but you may need a magnifying glass to uncover it.
A presentation pack written by Mathew Prichard, Agatha Christie’s grandson, is also available for budding crime fans to purchase.