Tickets for the 2016 festival weekend at the Barbican are now available at early-bird rates. See our tickets page for more information.
The Battle of Ideas 2015 festival weekend was a great success, with more debates, speakers and attendees than ever before. You can keep up to date with our latest audio and video from the 2015 festival, and be the first to know the latest news about the 2016 festival, by signing up to our newsletter.
Images from Battle of Ideas 2015.
Thanks to James Berry, Paul Brocklehurst, Lameya Chaudhury and Tom Fenn for the pictures.
Tweets by @instofideas
The Anthropocene: It’s Not All About Us, Richard Heinberg
We must fight for our right to party, David Bowden
Robin Williams, depression and the complex causes of suicide, Anne Cooke, Angela Gilchrist and John McGowan
The Chinese stock market debacle is a wake-up call about the exalted 'China model', Pascal-Emmanuel Gobry
What is 'Islamic State'?, BBC News
Priced out of Paris, Simon Kuper
Feminism is in danger of becoming toxic, Julie Bindel
Artistic intervention in public sphere, conflict and urban informality, Pedro Costa and Ricardo Lopes
Kashmir: Can new government provide healing touch?, Sumantra Bose
Against Modern Football: the controversial movement to reclaim a sport from capitalism gone mad, Leander Schaerlaeckens
Ten year after 7/7, they still don’t get it, Frank Furedi