My entry for the competition to design an addition to Gunnar Asplund's Stockholm Public Library began with an analysis through drawing and models of "Saint Jerome in his Study" painted by Antonella da Messina in 1457. The Asplund Library sits adjacent to one of the last remaining expressions of Stockholm's geologic past - an esker topped with the city astronomical observatory. The library addition will occupy the edge of the hill, extending out into the fabric of the city.