When we reach the spot in Toronto’s Cedarvale Ravine where, in spring, a runoff of iron from the city streets meets an invisible colony of bacteria, which eat iron and turn it into ochre – that’s where I see peak Jason Logan.
Logan, 50, is a Toronto-based writer, illustrator and art director for magazines and digital media. His work has appeared in this paper, The New Yorker and The New York Times. His fifth book, How to Be a Colour Wizard, is due next fall. A few years ago, he waged a campaign, “Toronto Needs a Creative Director” – Manchester, England, and Mexico City had improved their cities by appointing one – and almost convinced John…