The new Millis Public Library building project at Exchange and Main streets is on schedule for completion in the spring. With the exterior framing completed, the next phase of the project will involve work on the interior, including a large children's room and separate space for story hours, young adults, a community room, and a reading room with a gas fireplace for added coziness. The new library will be 17,800 square feet — more than three times the size of the existing library.