What to read after Mark Twain's Letters?

Like his other writings, Mark Twain's letters attest that he was not the greatest of all humorists, but that he did have an amazing gift of depicting the average American, and what is more, that he could do it sympathetically and from the inside of the house, not ironically through the window as Thackeray depicted the absurdities of his contemporaries. The letters show, also, what a storybook life he led. Born obscurely in a western town without advantages, half-educated as a typesetter for a country newspaper, a runaway, a soldier "riding a small yellow mule" to the aid of the Confederacy, a runaway again, a mining prospector familiar with mountain gambling-saloons, a news reporter, he at last acquired some fame with his "Jumping Frog." His reputation travelled east and he became a lecturer and special correspondent. Then, of a sudden, he made himself conspicuous to the entire country with his "Innocents Abroad." He became a mighty traveller. He was feasted by kings, decorated by universities, and honored everywhere. From Hartford all around the earth and back, he was a leading citizen of the world. The ingenious authors of the most shocking fiction could not invent plots swifter or more romantic. This editions contains the letters from the year 1853 all through 1910.