Between the classic and the contemporary, the Library of the House reveals itself as a space for permanence and reflection. Sober tones, classic woodworking, a fireplace, loose pieces, and lighting bring contemporary flair. The literary and artistic collection, belonging to Dr. Regina Casillo, a member of the Paraná Academy of Letters, imparts memory and sensitivity. A work by Eleutherio Neto, created from old books, reinforces the space's poetic nature. Versatile, the projects transforms into a guest room with a retractable bed embedded in the woodworking, revealing an architecture in motion that accommodates the needs of living.