Author Aparna Karthikeyan’s latest book, Nine Rupees an Hour: Disappearing Livelihoods of Tamil Nadu will be launched by veteran journalist P Sainath tomorrow. The theme being the dwindling occupations of the state, the book also features interviews of P Sainath, musician TM Krishna and writer Bama, among others. The event will also be attended by the people who have shared their stories for the book. Entry free. 10.45 am at Madras Literary Society. Details: 2827-9666.