Invited to take part in the fair are: Publishers, Distributors, Authorized Rep¬resentatives, Importers, Exporters, and Retail Booksellers. They may exhibit books of their own production or books which they dis¬tributed, imported or exported, and books involved in their own booksell¬ing activities, paper and graphic manufactures and related activities. Manufacturers and Importers and Graphic Accessories: They may exhibit all items connected with the activity by which were ad¬mitted to the Fair. - Writers and Authors, Associations, Theatre and other Artistic Activities, Professional Chambers, Graphic Designers and Artists: They may exhibit their documentation and books connected with their ac¬tivities and those of their associates. Foreign Embassies, Chambers and Companies: They may exhibit books as well as any printed matter related to their cul¬tural activities. National, State and City Organizations, Public, Private, National or city Libraries. They may display their organization and activities and may also carry out promotional work. In the case of libraries, they are allowed to enrol new members. Antique Dealers: They may exhibit books and materials belonging to their collections.