She had problems with handwriting and spelling. As a result, she had to dictate all her novels. She also had difficulty with arithmetic and foreign language learning.

Other fun facts about the author:

• Agatha Christie has sold more than 2 billion books worldwide. She wrote more than 90 novels and two dozen collections of short stories. Her work has been translated into more than a hundred languages.
• Her father died of pneumonia when she was 11.
• When she was 16, she left Britain for France to try a career as a singer and pianist, but it didn’t work out.
• Agatha Christie was a nurse during World War I.
• In 1926, she disappeared for 11 days after learning that her husband, Archie Christie, was cheating on her. She was found by the police in a hotel, registered under the name of her husband’s mistress. She divorced him a few years later.
• In 1930, she married a young archeologist, Max Mallowan, and she followed him on his working trips all over the world.
• She wrote romance novels under the pen name Mary Westmacott.
• In 1971, she was made an honorary Dame of the British Empire.