The Museum of Science and Technology of Catalonia (mNACTEC) brings to the company an extensive range of activities designed to promote the transfer of information and knowledge scientific and technological part of the Catalan industrial heritage. Every year, mNACTEC and Territorial System of museums and heritage centers affiliated, make available a wide range of community educator visits, workshops, dramatisations, exhibitions designed for educational professionals to respond current and experiential training needs of our students. The museum has a wide range of Library for documentation, Publications, Museum Blogs, Articles and research, Eix Magazin, Documentaries and 150 elements of Catalan industrial heritage. The catalogue consists of more than 20,000 science and technology references. The specialist library of the Museum of Science and Technology of Catalonia takes up much of the basement level of the new building (1995), including book, video and sound libraries, an image archive and Internet access. Other notable features are the collections of books and catalogues on the textile and railway industries, information technology and industrial heritage. The library regularly receives some 150 journals from all around, dealing with science and technology, and preserves more than 200 now-defunct journal imprints. The video and sound library holds some 400 references (1000 hours of image and sound), essentially dealing with the history of science and technology, manufacturing processes and the treatment of textile fibres. As for sound records, in addition to old recordings, there are also the proceedings of all the events, conferences and seminars organised by the mNACTEC. The mNACTEC Library belongs to the Specialist Library Network of the Autonomous Regional Government of Catalonia (the BEG). The mNACTEC library has highly valuable holdings given their specialist content in the fields of Industrial Heritage and the History of Science and Technology. As regards the content or formats of the documents, they cover a wide range, classified in 3 sections: monographs, journals and non-book materials.