SOLD.           Although the covers of two different books are utilized, the red in each create a natural pairing of colour, form and texture. Both covers have a decorative edging stamped or printed on, which reminds us that the manufacturers added beauty to even the most utilitarian objects or parts of objects. It was unusual for me to place the pen, ruler, and small book cover pieces on the diagonal here. They end up being highlighted since they diverge from the strong horizontals and verticals of the other items. www.yourartpath.com/types-of-line-in-art-meaning.