ATP International Series | International Monetary Fund | International Red Cross and Red Crescent Movement | ATP International Series Gold | International Space Station | Amnesty International | International Olympic Committee | BirdLife International | International Finance Corporation | International Organization for Standardization | International Telecommunication Union | International Criminal Court | One Day International | International Nonproprietary Name | International Labour Organization | International Civil Aviation Organization | International Boxing Federation | Toronto International Film Festival | International Atomic Energy Agency | International Maritime Organization | International Development Association | John F. Kennedy International Airport | Los Angeles International Airport | International Bank for Reconstruction and Development | International Court of Justice | International Fund for Agricultural Development | Rotary International | Marriott International | International Air Transport Association | Woodrow Wilson International Center for Scholars |
From 1965 to 1978, he was a member of the Zentralvorstandes des Schriftstellerverbandes der DDR (Central Executive Committee of the Literary Association of East Germany); he was a member of the presidency of the PEN Centre of East Germany from 1974 to 1982.
At the 11th international congress of the literary organization P.E.N., held in Dubrovnik, Jacob joined fellow writers Raoul Auernheimer and Paul Frischaue in vocal opposition to Nazism, and contributed to the fracturing of the Austrian chapter of P.E.N. His books were banned under the Nazi regime, but remained in print via Swiss and Dutch exile publishers.
He has been a member of the board of directors of Poets House, Poetry Society of America, and The Writer's Voice, and served on the International PEN Events Committee.
The prize is awarded by an independent association Litera which associates members of all Czech literary or book-market organizations: Academy of Sciences of the Czech Republic, Association of Booksellers and Publishers, Czech Centre of International PEN, Czech section of IBBY, Society of Czech Writers, Czech Translators’ Guild.
In 2005, the Swedish branch of the organisation International PEN granted El-Youssef the Tucholsky award, named after Kurt Tucholsky and given each year to a writer or publisher who is either being persecuted or threatened, or living in exile.
In 1954, she was selected as the Japanese delegate to the International PEN meeting in Amsterdam.
Two of his novels, one in Shona and the other in English, both published in 1975, won the International PEN Awards.