Owing to the success of his work,
The Mother at Home, he devoted himself from 1844 onwards, to literature. He was a voluminous writer of books on Christian ethics, and of popular histories, which were credited with cultivating a popular interest in history. He is best known as the author of the widely popular
History of Napoleon Bonaparte (1855), in which the various elements and episodes in Napoleon's career are described. Abbott takes a very favourable view towards his subject throughout. Also among his principal works are:
History of the Civil War in America (1863–1866),
History of Napoleon III Emperor of the French (1868), and
The History of Frederick II, Called Frederick the Great (New York, 1871). He also did a foreword to a book called Life of Boone by W.M. Bogart, about
Daniel Boone in 1876. His biography in
The Biographical Dictionary of America (1906) states that Abbot's mind was extremely clear and active, and he could leave the subject in hand for something entirely different, and then resume his former work without the slightest inconvenience, also he had a singularly even temperament; by his personal goodness, as well as by his books, he had a great influence on the world, he continued active in work nearly to the time of his death, to which he looked forward with joy rather than resignation. The
Encyclopædia Britannica (11th edition) stated "He was a voluminous writer of books on Christian ethics, and of histories, which now seem unscholarly and untrustworthy, but were valuable in their time in cultivating a popular interest in history"; and that in general, except that he did not write juvenile fiction, his work in subject and style closely resembles that of his brother,
Jacob Abbott. ==Marriage and children==