Throughout the weekend, we will have a special programme of informal conversations between Battle of Ideas speakers on topics in the news.
Hot off the press debates are full-length sessions.
Battle bites are short lunchtime discussions - grab a sandwich and join the debate.
All these special topical sessions are free and open to non ticket holders.
From bullet trains to driverless cars: where is transport going?
"Although 'battle' suggests destruction, these were some of the most constructive debates I've taken part in. This was civilised conflict in the best sense of both words."
Julian Baggini, author, Welcome to Everytown: A Journey into the English Mind, and The Ego Trick