PITTSFIELD â Independent bookstores often struggle to find a foothold these days, but a Berkshire County couple believe they have found a formula that will work in their new venture, which recently opened on upper North Street. Stephen Rudy and Susana Gilboe own Familiar Trees, a bookstore/gallery space at 411 North St. that offers equal parts literature and artwork. Familiar Trees offers books that specialize in art-related topics like art design, graphic design and photography, along with a curated literature and poetry section. It also sells various types of art objects, like painting...