More Is More | Online Only | n+1 | Meghan O'Gieblyn
Marguerite Young spent eighteen years of her life writing Miss MacIntosh, My Darling, the amount of time it requires to raise a child. She began the novel in 1945, in the shadow of Hiroshima, and proceeded for the next two decades to work on it each day, putting in a reliable eight hours.
Source: nplusonemag.com