While romance novels are easy to find at any library, passion, tenderness and devotion expressed in other types of relationships can also be found in books.

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 Day is upon us – a day filled with heart-shaped treats, flowers, and, of course, love. But let’s be honest: sometimes the holiday can become cloying – excessively sweet to the point of sugar-rush.