Jean Polak antiquarian bookstore is a member of the following three trade associations, your assurance of the highest professional and ethical standards: |
 | In France, the Syndicat national de la Librairie Ancienne et Moderne (SLAM) is the only Professional Association of Antiquarian Bookdealers, Autographs and Engravings in France. It was created in 1914 and includes some 220 members, the best in their own specialities. These bookdealers have accepted the ethic code established by the SLAM, affiliated with the ILAB-LILA. |
 | The International League of Antiquarian Booksellers (ILAB-LILA) represents twenty nations and 2000 leading booksellers throughout the world. Its emblem stands for integrity and professionalism in the rare book trade worldwide. |
 | The Company Nationale des Experts (CNE) has been established for over 30 years and is one of the most important European Company of Experts. It comprises over 140 Experts specialized in very specific areas: Books - Antiques - Paintings - Curiosities and art objects, of every periods. |