This project is a large extension of the famous Asplund Library in Stockholm (1928) by Gunnar Asplund. The original building is a turning point of Modernism: a cylinder (instead of a Dome) intercepts a "cube": geometry is now based on simple figures. The proposal then faces the difficult task of respecting an historical building, but highlighting it... The New Library sets an articulation between the new urban centre (located in opposite direction from Asplund's times), the Old Library and a beautiful Hill / Observatory behind, now revealed to the City... but from inside the big Reading Space. The main facade (Odengatan) has an Arcade, the main entrance and shops. Placed backwards, the facade reveals the Old Library from far, creating the new Asplund Square and a cozy cafe at the joint of both buildings. The triangular shape contains two inner spaces: a courtyard (including existing trees) and the Reading Platforms. A series of groupal rooms, pods and peripatetic alleys conform a flexible concept: everyone can choose a particular space for reading, which is an intimate experience. The entrance sequence has three steps: the Question (under trees in the Courtyard) the Search (darker area of shelves) and finally the Discovery (reading space at the large window, full of light).