Cologne-based artist Heike Weber uses a very common and available tool to create large scale installations – the marker pen.

Through meticulous and labour-intensive applications of the instrument, Weber floods the surfaces of interiors in sprawling, connected doodles, injecting a powerful energy through creeping strokes and lines.

Pictured is her work for the interior café of the Goethe Institute in Prague, Czech Republic.

Read the full post on Design Boom.