Jill Santopolo discusses her book “The Light We Lost.” Lucy and Gabe meet as seniors at Columbia University on a day that changes both of their lives forever. Together, they decide they want their lives to mean something, to matter. When they meet again a year later, it seems fated–perhaps they’ll find life’s meaning in each other. But then Gabe becomes a photojournalist assigned to the Middle East and Lucy pursues a career in New York. What follows is a thirteen-year journey of dreams, desires, jealousies, betrayals, and, ultimately, of love. 8 p.m. Books & Books, 265 Aragon Ave., Coral Gables. Details: http://booksandbooks.com.