Peter Gluck designed this New York library for his wife Carol, a scholar. The lower, windowless part has room to store books while the upper level is a work space with windows that complete slide out of the way.
LR window seat inspiration--but with thick cushion. (Note how backrest plane and then seat plane expand overall width without having to thicken the wall.) Napa Valley House by Steven Harris Architecture (Architect: Eliot Lee)