Transform your space with our Modern Onyx & Copper: Color By The Foot. Order as many linear feet as you need to complete your project. Authentic modern hardback decorative books in shades of black with unifying copper spine accents. All books are published 1980-present and include a variety of fiction and non-fiction titles. Each linear foot contains 10-12 books with an average height of 8.5-9.5". Titles will differ from those pictured.