The ascending or descending movement of the ramp (an open promenade along the major longitudinal axis of the building) attains a metaphorical meaning; Thus strongly referring to an «open chapter» (or «Avoin Luku» in Finnish). Or else, of a first «open chapter» and architectural comprehension of the library, as a complex articulation of spaces with distinct roles, relations and characteristics. Constant movement of the ramp is a strong sign of mobility: iIts zigzagging course, suspended in space, strongly differentiates it to the dominant horizontality of the neighboring buildings. It thus becomes a prominent symbolic sign of the Library, forming a distinct landmark within the city.