Transform your space with our Modern Onyx & Metallic Color By The Foot. Order as many linear feet as you need to complete your project. Authentic modern hardback books in shades of black with colorful metallic spine accents. All books are published 1980-present and include a variety of fiction and non-fiction works. Each linear foot contains 10-12 books with an average height of 8.5-9.5". Titles will differ from those pictured but will maintain the same color pattern.