"Mannen som slutade röka" (The Man Who Quit Smoking) from 1968 by Tage Danielsson and illustrated by Per Åhlin is a comedy inspired by the Divine Comedy (beginning of the 14th century) by Dante Alighieri, which is in fact also the name of the main character in this modern version. Like his mid-evil namesake Dante also goes through the three stages Inferno, Purgatorio and finally Paradiso. Dante is "...a young man who loves smoking. When his father dies Dante inherits $17 million on one special condition: He must give up smoking in 14 days and then stay smoke-free for an entire year. If he fails, his uncle inherits the $17 million instead. Dante has a living hell while trying to quit, and hires a private detective agency called Little Secret Service who he gives free hands to stop him from smoking, While his uncle, who has taken up smoking himself, also does everything he can to make Dante smoke again." (quote)
I've scanned most of Per Åhlin's book illustrations for Mannen som slutade röka and I hope you enjoy them.
In 1972 came the movie based on the book directed by the writer himself.
The Man Who Quit Smoking (Wikipedia)
Mannen som slutade röka (1972) (IMDb)