This beautiful bookcase is designed by Sakurah Adachi, a Japanese designer. The cave is installed with the nook so that when you sit in the cave, you'll be surrounding with the books. The design gives you warm and cozy look. You can enjoy your reading as long as you want because the seat is upholstered with fabric and it's just above the floor. The cave also comes with a LED reading light. You can use it as a partition of a room.