Book excerpt: East London photographer Johanna Neurath has ventured down Hackneyùs Columbia Road every Sunday for the last 10 years to visit its flower market. But rather than depicting the obvious prettiness of the people and flowers, she focuses her attention on the colour and patterns left behind as the market clears out. This book fuses still life and street photography to celebrate the beauty and chaos of one of East Londonùs most famous markets.