Book excerpt: The EU is a unique endeavour involving more than 500 million citizens sharing about 80 different languages, and while multilingualism is a key feature, it is also one of the most substantial challenges for the creation of a truly integrated EU. Language barriers have a profound effect on cross-border public services, on fostering a common European identity, on workers' mobility, and on cross-border e-commerce and trade, in the context of a Digital Single Market. The emergence of new technological approaches, based on increased computational power and access to sizeable amounts of data, are making Human Language Technologies (HLT) a real solution to overcoming language barriers. However, several challenges, such as market fragmentation and unsubstantial and uncoordinated funding strategies, are hindering the European HLT community, including research and industry.