Harvard Library is offering an environmental way to let your favorite people know you care on this Valentine’s Day. Simply click on the link provided, choose a card, write your greeting, and send it via email. The cards range from a 19th-century hand-drawn valentine card from Houghton Library to an image from Emily Dickinson’s herbarium at Houghton Library. Even Harvard’s Map Collection can find its way into someone’s heart. So click, write, and send.