The Friends of the Ottawa Public Library Association (FOPLA) invite you to their monthly Mammoth Used Book Sale! Hundreds of used books, cds, dvds and vinyls for sale at unbeatable prices, including as low as for $1. Browse a variety of genres including Fiction, Non-Fiction, Lifestyle, Sci-Fi & Fantasy, Biography, Children’s and more. Also this month, a variety of music books and music sheets. Proceeds benefit the Ottawa Public Library.