The greatest of storytellers, with an eye for vivid details of life and character types, and a tendency for unlikely dramatic plots.
He had no formal education after age 15, when he went to work. Sold his first book at 21, and fame and fortune ensued for this lad whose dad was in debtor's prison.
Here's the opening paragraph of Bleak House (perhaps his masterpiece) via A Sympathiser with the Poor’: Charles Dickens at 200:
London. Michaelmas term lately over, and the Lord Chancellor sitting in Lincoln's Inn Hall. Implacable November weather. As much mud in the streets as if the waters had but newly retired from the face of the earth, and it would not be wonderful to meet a Megalosaurus, forty feet long or so, waddling like an elephantine lizard up Holborn Hill. Smoke lowering down from chimney-pots, making a soft black drizzle, with flakes of soot in it as big as full-grown snowflakes—gone into mourning, one might imagine, for the death of the sun. Dogs, undistinguishable in mire. Horses, scarcely better; splashed to their very blinkers. Foot passengers, jostling one another's umbrellas in a general infection of ill temper, and losing their foot-hold at street-corners, where tens of thousands of other foot passengers have been slipping and sliding since the day broke (if this day ever broke), adding new deposits to the crust upon crust of mud, sticking at those points tenaciously to the pavement, and accumulating at compound interest.
He wrote casually, effortlessly, humorously. You can learn all anybody needs to know about human nature from Dickens. He had been there and done that.
Here's a list of his published writings. Prolific.