Xavier Agenjo Bullón
Xavier Agenjo Bullón (1955–) is a Spanish librarian and bibliographer, best known for his pioneering contributions to the development of digital libraries.
Life

Xavier Agenjo Bullón was born in Madrid on 23 August 1955, the son of Ramón Agenjo Cecilia and Carmen Bullón Calvo. He earned a degree in Hispanic Philology from the Complutense University of Madrid. In 1986 he joined the Spanish Corps of Archivists, Librarians and Archaeologists as a career civil servant.
His first appointment was at the Centre for Bibliographic Heritage (formerly the National Centre for Documentary and Bibliographic Heritage) of the National Library of Spain (Biblioteca Nacional de España, BNE). In 1986 he was appointed Head of the Union Catalogue of Bibliographic Heritage Service, where he coordinated the computerization of the Union Catalogue of Bibliographic Heritage. This became the first computerized union catalogue of rare and early printed collections in Spain, and one of the first of its kind worldwide. It served as a model for cooperative cataloguing, leading to the development of regional union catalogues of bibliographic heritage throughout Spain's Autonomous Communities and, in parallel, to the widespread adoption of standards for computerized bibliographic cataloguing.
He participated in the first European cooperative bibliographic initiatives, including the Consortium of European Research Libraries (CERL), whose principal objective was the creation of a European union catalogue of books printed before 1830, the Hand Press Book Database (HPB), now known as the Heritage of the Printed Book Database.
In 1989 he served on the BNE Commission for Computerization, which was responsible for selecting an integrated library system for the National Library, and from its creation in 1990 until 1993 he headed its Information Technology Coordination Unit. His principal achievement during this period was the implementation, in 1991, of ARIADNA, the BNE's integrated library management system, which remained in operation until 2007. The computerization of the National Library was based on the implementation of the IBERMARC format as a common encoding standard for all types of library materials, the establishment of authority control, and the definition of a standardized character set capable of representing multiple writing systems—including Arabic, Greek and Hebrew—as well as the special characters required for bibliographic descriptions.
In 1992 he directed the publication of the first CD-ROM edition of the Bibliografía Española. He also coordinated the BNE's participation in several projects commemorating the Fifth Centenary of the Discovery of America, including the CD-ROM editions of ADMYTE (Archivo Digital de Manuscritos y Textos Españoles), Bibliotecas sin Fronteras (a union catalogue of Latin American collections held in Spanish libraries), and Novum Regestrum (a union catalogue of rare books dating from the fifteenth to the nineteenth centuries, produced by the Association of Ibero-American National Libraries, ABINIA).
In 1993 he was appointed Head of the Department of Access to Information and Documents, where he initiated the first digitization programmes at the National Library of Spain.
In 1996 he left the BNE to serve as Acting Director of the Menéndez Pelayo Library and House Museum, a position that he obtained permanently through a competitive civil service examination in 1998. His principal achievements during this period included the production of digital CD-ROM editions of the complete works of Marcelino Menéndez Pelayo, his correspondence, and his bibliography. At the same time he served as Secretary of the Royal Menéndez Pelayo Society and editor of the Boletín de la Biblioteca de Menéndez Pelayo.
Drawing on his extensive knowledge of the work of Marcelino Menéndez Pelayo, Agenjo proposed the creation of a "new inventory of Spanish scholarship." The ultimate objective was to build a digital repertory of the intellectual production of Spanish, Portuguese, Brazilian, and Spanish American polymaths. This initiative received the support of Ignacio Hernando de Larramendi, who incorporated it into the FHL Virtual Libraries programme and made it one of the principal activities of the Hernando de Larramendi Foundation. In 2001 the project was renamed Polígrafos Menéndez Pelayo, with Xavier Agenjo serving as its director.
In 2002 Agenjo joined the Ignacio Larramendi Foundation as Director of Projects. During this period the Polígrafos Menéndez Pelayo initiative evolved into the Biblioteca Virtual de Polígrafos (Virtual Library of Polymaths), combining several complementary dimensions: bibliographical work (to identify the principal authors, their most significant works, and the scholars who have studied them); the standardization of bibliographic metadata and authority records to support linked data technologies and semantic relationships; metadata harvesting; and the digitization of works not yet available on the web.
Contributions
Xavier Agenjo Bullón has been one of the leading figures in the modernization of Spanish librarianship and the development of digital libraries. He played a decisive role in the computerization of the National Library of Spain, leading the implementation of the ARIADNA integrated library system, and promoting authority control and bibliographic standards. He pioneered cooperative cataloguing through the Union Catalogue of Bibliographic Heritage and participated in major European initiatives such as CERL. He also launched the first digitization programmes at the National Library of Spain and later became a key promoter of virtual libraries based on rich metadata, authority records, metadata harvesting, and linked data technologies through the Ignacio Larramendi Foundation. His work has significantly advanced the digital preservation, organization, and dissemination of bibliographic and cultural heritage.
- Automation of the Union Catalogue of Bibliographic Heritage
- Automation of the National Library of Spain. ARIADNA Project
- Start of the digitization of the bibliographic materials of the National Library of Spain
- Start of the robotization of the stacks at the National Library of Spain's site in Alcalá de Henares
- Cataloguing in MARC format of all the bibliographic materials of the National Library of Spain
- Creation of the authority file of the National Library of Spain in MARC format
- Creation of the circulation module of the National Library of Spain based on the MARC format for holdings and locations
- Automation and digitization of the complete works and correspondence of Menéndez Pelayo in HTML
- Design of the DIGIBIB program for the Virtual Library of Polygraphs and implementation of this program in various libraries of the Autonomous Communities
- Design of the DIGIHUB program for metadata aggregation using the OAI-PMH protocol
- Design of the DIGIARCH program for archives
- Application of the Europeana Data Model to these programs
- The Virtual Library of Polygraphs was a case study of W3C-LLD and of the Europeana Data Model
- Semantic enrichment of authority records
- Promotion of BIBFRAME in Spain
Each of these achievements has been documented in many articles, conference papers, websites, etc.
Publications
He is the author of hundreds of publications. The most comprehensive collections are:
- Dialnet. http://dialnet.unirioja.es/servlet/autor?codigo=267494
- Google Scholar. https://scholar.google.com/citations?user=yu0KhbEAAAAJ
- Academia.edu. https://larramendi.academia.edu/XavierAgenjo
Further reading
- Jiménez Fernández, Conchi (2015). «Entrevista a Xavier Agenjo Bullón, director de proyectos de la Fundación Ignacio Larramendi y de DIGIBIS». Mi biblioteca: La revista del mundo bibliotecario (40), pp. 30-34.
- "Entrevista a Xavier Agenjo Bullón". Alquibla, una mirada al mundo de las bibliotecas. 2013. http://www.alquiblaweb.com/2013/05/02/entrevista-a-xavier-agenjo-bullon
- Short Curriculum Vitae, Instituto Cervantes. https://www.cervantes.es/imagenes/File/biblioteca/jornadas/agenjo_bullon_xavier_cv.pdf
- Xavier Agenjo, profile. Everybodywiki. https://es.everybodywiki.com/Xavier_Agenjo