Redeeming Love, by Francine Rivers is a historical romance novel set in the Gold Rush in California. The story is inspired by the book of Hosea from the Bible. Its central theme is to portray the redeeming love of God towards sinners.
This is one of those my-awkward-rise-to-Hollywood-fame books, but it's told from the relatable perspective of The Mindy Project's Mindy Kaling, who loves doughnuts as much as you. Plus, it's fun to read in her high-pitched voice.
Heaven is for Real: A Little Boy’s Astounding Story of His Trip to Heaven and Back, by Todd Burpo and Lynn Vincent [Thomas Nelson / HarperCollins Christian Publishing], is the Kobo Daily Deal, price matched on Kindle,
"Shattered Dreams: My Life as a Polygamist's Wife" - A fantastic, well-written book about life as a polygamist back in the century. Gives good background for other, more recent stories of polygamy in the U.