Picture this You are strolling along Central Park fairground, with rows of stalls heaped with books flanking you. It's January, but the sun is warm. You are at Boi Mela&ndash or the International Kolkata Book Fair. For the locals, this isn't just your regular run-of-the-mill winter book fair it is so much more. Since its inception in 1972, the book fair has been the largest in the world by attendance, attracting a footfall of over 2 million.