This sweet, quiet rear studio features oak trim throughout, a large room with kitchenette, with a big window on the backyard, a full bath with vintage tile, a large private roof deck under a shady bough, accessed via the bathroom window, and a new laundry in-unit. A perfect study retreat for one, or a couple, in these times of work-at-home and social distancing, this apartment is a block from the Columbia University library.