Select books that you love and that best represent you, your hobbies, and passions. Also find books of various colors at local antique or thrift shops. Look for neutral tones, using vintage books to bring in those warmer tones and texture. Have a certain accent color in your space you want to highlight? Look for books in that color and group them together for visual impact. Want a more monochromatic look? Turn the books and have the paper showing instead of the spine