Montmartre, its old buildings and their atypical shapes. Geometry emerging from the beaten track, in acute angle, incompatible with the standards. When the deadlock is reached, the solution is not always in the straight line but sometimes in the zigzag. A library in two slanting sides erases the anomaly and transforms the space. Aesthetic in two stages: both opening on books but discreetly concealing desk and audiovisual material by closing or sliding. Uniformly white, it forms the new 4th face of the volume. The broken line erased the diagonal.
Area 20 m²