The Hundred-Year-Old Man Who Climbed Out the Window and Disappeared has sold almost one-and-a-half million copies in English.
Originally published in Swedish in 2009, it was the debut novel by author Jonas Jonasson.
Now Hesperus has high hopes for another novel, The Peculiar Life of a Lonely Postman by Canadian author Denis Thériault, which has been translated from the French.
Thériault is an award-winning screenwriter who lives with his family in Montreal. His work has already been translated into many languages.
Founded in 2002, Hesperus Press has grown from being a small publisher of classic literature to the internationally successful company it is today.
In the past two years, revenue has grown by 95%, or by a staggering 732% if one includes The Hundred-Year-Old Man.
Combined sales of The Hundred-Year-Old Man in all formats now total 1.49 million copies.
The book has also been adapted successfully for the screen.
The success of this off-beat novel has led Hesperus to launch two new imprints, Hesperus Minor, which publishes children's classics, and Hesperus Nova, which publishes contemporary literature.
The burgeoning firm has high hopes for The Peculiar Life of a Lonely Postman, published under Hesperus Nova.
It was originally published in English by a small Canadian publisher, Dundurn Press, with the title The Postman's Round in 2007. Sales were small and the book had little impact outside Canada.
However, given Hesperus's recent track record, expect the novel to be a huge best-seller in English this autumn, second time around.
