This issue brings together very diverse works, which we have tried to group together with some affinity: the first four texts focus on information services (archives, museums, public and school libraries); then, in a second group, we have a series of more theoretical articles on Information Science (its origins, positioning in the face of digital transformation), United Nations information integrity, the skills of professionals, the concept of literacy, concept maps, ethics and responsibility, the role of the professional in the face of disinformation, sound archives from a historical perspective; in the final part, a third set, with four more papers, focusing on Artificial Intelligence issues and their relationship with Information Science and/or application in information services.