The London Book Fair took place this week - the UK's largest publishing event.
Over the past decade the presence of digital publishing has been increasingly felt there - but this year another milestone was reached. Video gamers were given their own pavilion, another sign of barriers breaking down in the digital world.
BBC News went to meet the new intruders, speaking to Ian Livingstone, co-founder of Games Workshop and one of the authors of the 1980s publishing phenomenon, the Fighting Fantasy series; digital developer Rebecca Winch of the The Project Factory, who made the official Sherlock Holmes app, 'Sherlock: The Network'; and Kate Ho, managing director of Interface3, who make interactive, educational games for children for mobile platforms.
Video Journalist: Dougal Shaw
Fighting Fantasy images reproduced courtesy of Tin Man Games
