Why he wrote it?

Charles Dickens wrote the book Great Expectations to portray life during this time in England. It is a semi-autobiographical story and is claimed to be his darkest writing. It is supposed to be his greatest use of plot, characterization, and style and the masterpiece of Dickens' works. His use of symbolism of the mist shows how some might consider this too be his darkest writing. He uses diction and syntax that is very descriptive and that's why some consider that to be his greatest use of plot, characterization, etc.