When trying to find a Valentine's Day gift for your single partner in crime or current lover, there's a lot to love about books. They are sweetly simple, making them acceptable for a new man in your life. But books also can convey that you put a lot of thought into the present, since you can draw on how well you know your best friend or longtime love to find the perfect title to add to their bookshelves. We've rounded up some books on love, sex, marriage, and the single life that range from humorous to earnest. We hope they help you spread some love come Feb. 14.
— Additional reporting by Tara Block