Agatha Christie, celebrated as the 'Queen of Crime', remains the most popular crime novelist in history, with her works outsold only by religious texts and Shakespeare. Her ingenious plots, memorable detectives like Hercule Poirot and Miss Marple, and witty writing style transformed murder mysteries into engaging puzzles for readers worldwide. Christie's stories are set in familiar yet intense social worlds, blending cozy settings with dark themes, which contributed to their universal appeal and accessibility.

Her prolific career spanned over five decades, resulting in around 80 detective novels, numerous short stories, and plays, including the record-breaking 'The Mousetrap'. Christie's clear language, fast-paced dialogue, and clever use of humor and psychological insight made her mysteries both approachable and intellectually satisfying. One of her famous quotes, 'It is really a hard life. Men will not be nice to you if you are not good-looking, and women will not be nice to you if you are,' reflects her sharp social commentary and ability to capture the complexities of human nature with wit and empathy.