* John Smith (1580-1631) was an English explorer, soldier, and author. He wrote "The Generall Historie of Virginia, New-England, and the Summer Isles" (1624), which is considered a primary source document about early English colonization in America. He also wrote other works like "A Description of New England" (1616) and "True Travels, Adventures and Observations" (1630).
* John Smith (1852-1934) was a Scottish physician and author. He wrote over 20 books, primarily focused on medical history and social commentary. Some of his most notable works include "The Life of Lister" (1913) and "The Story of a Great Medical Discovery" (1917).
Therefore, both John Smiths wrote books, but their writings differed significantly based on their respective fields.