To add dimension and interest, Hewett relies on layers while styling bookcases. “Start by incorporating a contrasting paint color or even a fun textured wallpaper on the back wall,” she says. Layer in meaningful mementos, family heirlooms or items collected during travels. For those books that you can’t bear to part with but have unsightly covers, the Lake Highlands designer suggests removing the jackets or turning them so that the binding faces the back to create a more cohesive palette.