As a representative figure of American critical realist literature, Mark Twain’s creative tentacles are rooted in all aspects of social reality. As his life experience deepened, Mark Twain gained a clearer understanding of the social reality hidden under the surface prosperity of the United States. He began to explore some profound social issues in his works. This period was the golden age of Mark Twain's creation. It was also a period when he deepened his thinking and exploration of the American political system, lifestyle, and ideological sentiments on the basis of continuing to observe society. Sharp satire and ruthless exposure were the main features of his works during this period. The tone of his works has also changed from the early humorous optimism to ruthless exposure and pungent satire. The writing style is sharper, the satire is more intense, and the critical component of the humorous satire is enhanced. The broad life picture and the establishment of characters in the work reflect the author's more mature, charming and colorful artistic skills.

Helen Keller once said: "I like Mark Twain - who wouldn't like him? Even God will love him, endow him with wisdom, and paint a beautiful picture in his heart. A rainbow of love and faith." William Faulkner called him "the first true American writer from whom we all descend." He is the master of American vernacular literature. Hemingway once said that "all contemporary American literature originated from a book called "The Adventures of Huckleberry Finn" by Mark Twain."