Petra is a modular bookcase that captures the fluidity and serenity of a waterfall while maintaining a strong and rigid structure through the use of glass and metal. The bookcase’s skeleton recalls the robust structure of a modern skyscraper or urban landscape. Its straight lines and geometric shapes give it a sense of strength and stability. The tempered glass shelves inserted into the structure are softly shaped to imitate the liquidity of water, capturing the moment it flows downward from one level to the next. The glass panels also allow light to pass through, creating a sense of openness and transparency within the bookcase itself.