Charles Dickens had a difficult childhood marked by economic hardship. He began working at age 15 and later became a journalist. As a journalist, he published several short stories and novels in serial form which became very popular. Some of his most famous works include Oliver Twist, A Christmas Carol, David Copperfield, and A Tale of Two Cities. Throughout his career, Dickens frequently used his writing to criticize and satirize various social issues of his time. He worked as a novelist and journalist until his death in 1870, leaving his final work The Mystery of Edwin Drood unfinished.