The spirit of Valentine’s Day, like February itself, is best kept short and sweet. On the occasion of a notoriously commercial day that can provoke resentment, elation, or both at the same time, we’ve gathered art books about letters and love in all its forms — platonic,

Valentine's cards and gifts have their roots in English traditions — but Americans have long embraced them for romantic partners and other loved ones.

Valentine’s Day offers an opportunity to reflect on what science tells us about our romantic relationships, experts say.