Annual Report of the Work of the Union. Résumé and general review of UPU activities.
Collection of Postal Studies. A series of publications concerning topics studied by the UPU.
Union Postale. Quarterly. Parallel text in the seven languages of the union—Arabic, Chinese, English, French, German, Russian, and Spanish. Contains articles on postal services and information on UPU activities.
The Universal Postal Union. (brochure) A brief outline of UPU features.