Cracow 1991 the values and the cultural heritage of diverse groups will be enhanced with the involvement of those groups, which is conducive to the tolerance and respect for different cultures which are of paramount importance. 19. The participating States recognize the usefulness and importance of exchanging information on preserving the cultural heritage and acknowledge that the use of data banks, on a national and multilateral level, could make a useful contribution to this work. III. Principal Areas of Preservation and Co-operation 20. The participating States will encourage training, at the initial and advanced levels, for the various professions and crafts involved in preserving and restoring the cultural heritage, as well as in administering it. They agree to keep one another informed of any important developments in this field and to co-operate with one another. 20.1 The dissemination of knowledge and skills, especially vanishing skills related to the cultural heritage, through training, the exchange of personnel, research and technical publication, is necessary to ensure continuity in cultural preservation. They therefore reaffirm their commitments to encourage bilateral and multilateral exchanges of trainees and specialists. 20.2 The participating States should invite the appropriate professional organizations to set up a national register of skilled craftspersons competent in the field of the protection and preservation of the cultural heritage, in order to facilitate contacts between such persons and the users of their services both nationally and internationally. 21. The participating States will exchange data on their cultural heritage policies, particularly regarding the methods, means and possibilities provided by new technologies. 22. The participating States will strive to share their knowledge and experience in the area of publishing and distribution of printed and audiovisual material. 22.1 With a view to increasing public awareness regarding the preservation of the cultural heritage, the participating States will make information available that will assist radio and television stations, as well as the print media, to promote information in this area. 23. They will endeavour to improve storage conditions for perishable cultural goods such as paper, film tapes and recorded sound materials, to establish national programmes for the preservation of the perishable cultural heritage and to set commonly accepted standards for all types of carriers of cultural products in order to safeguard the permanence of such items of culture. 24. The participating States will encourage the establishment of links between resource centres and data banks in cultural fields so as to facilitate the exchange of information between them. 96 OSCE Human Dimension Commitments