The Semantic Web offers a unique opportunity to connect cultural heritage data and give rise to a global network of historical events and ideas that might change our view of history. Controlled vocabularies play a central role in this process. They serve as a common reference, a means for aligning the data. As linked data, they can even become a source of information themselves. Organizations of all sizes as well as individual researchers have been using them for a long time. However, the leap towards linked data presents challenges. One is the technical skills required to create or transform controlled vocabularies into linked data. The development of user-friendly applications addressed to users without technical expertise could be a solution. To this end, we have created and present in this chapter CoVEd, a user-friendly editor for controlled vocabularies as linked data in the SKOS schema. We evaluated the editor through a user study with 15 experts, aiming to record their perspective and expectations from such an application. The results suggest that an intuitive tool like CoVEd could facilitate experts to focus more towards the vocabulary and data and less towards the means to curate them, supporting the improvement of heritage data.