To Sin with a Viking font here refers to the font used on the cover artwork of To Sin with a Viking, which is a romance novel by Michelle Willingham.
The font used on the cover for the book title and the author name is probably Mason Sans Bold designed by Jonathan Barnbrook. More details about the typeface can be found here.
Download Mason Font
The Mason font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.