Gabriel Naudé (2 February 1600 – 10 July 1653) was a French librarian and scholar. He was a prolific writer who produced works on many subjects including politics, religion, history and the supernatural. An influential work on library science was the 1627 book Advice on Establishing a Library. Naudé was later able to put into practice all the ideas he put forth in Advice, when he was given the opportunity to build and maintain the library of Cardinal Jules Mazarin.
Naudé was born in Paris in early 1600 to a family of modest means. His father was a lowly official and his mother was a young illiterate woman. He was described by his teachers as tenacious and passionate about his education. Naudé entered college at a young age where he studied philosophy and grammar. Later he studied medicine at Paris and Padua (where he attended Cesare Cremonini's lessons), and became physician to Louis XIII.
At the age of twenty, Naudé published his first book Le Marfore ou Discours Contre les Lisbelles. The work would bring him to the attention of Henri de Mesme, President of the Paris Parlement. Mesme offered Naudé the job of librarian to his personal collection. Mesmes had a large library for the period (about 8,000 volumes) and it was open to scholars who had the appropriate references. Naudé's service in Mesme's library would give him experience which he would use later to write the book Advice on Establishing a Library. Naudé wrote Advice for Mesme as a guide for building and maintaining his library. In 1629 he became librarian to Cardinal Jean-François de Bagni at Rome, and on Bagni's death in 1641 librarian to Cardinal Francesco Barberini.
At the desire of Cardinal Richelieu he began a controversy with the Benedictines, denying Jean Gerson's authorship of De Imitatione Christi. Richelieu intended to make Naudé his librarian, and on his death Naudé accepted a similar offer from Cardinal Mazarin. For the next ten years he devoted himself to bringing together from all parts of Europe the noble assemblage of books known as the Bibliothèque Mazarine. Mazarin had brought with him to Paris a collection numbering over 5,000 volumes. Like Naudé, he believed in an open library to be used by the public for the public good. In 1642 he purchased a building to house his library and he instructed Naudé to build up the finest collection possible.
The fastest way was to absorb entire libraries into the collection, advice that Naudé included in his book. Naudé plundered second hand book sellers, and Mazarin instructed his ambassadors, government officials and generals to collect books for him. Naudé was able to travel Europe, and during one trip that lasted several months he collected over 14,000 volumes. By 1648 the library had built up to an estimated at 40,000 volumes. It was open on a regular basis and had built up a sizable number (almost 100) of regular patrons, and several staff members to keep it functioning properly. It became the first in France to be open for all, without references.
Mazarin's library was sold by the parlement of Paris during the troubles of the Fronde, and Queen Christina invited Naudé to Stockholm. He was not happy in Sweden, and on Mazarin's appeal that he should re-form his scattered library Naudé returned at once. But his health was broken, and he died on the journey at Abbeville on 10 July 1653.
The friend of Gui Patin, of Pierre Gassendi and all the liberal thinkers of his time, Naudé was no mere bookworm; his books show traces of the critical spirit which made him a worthy colleague of the humorists and scholars who prepared the way for the better known writers of the siècle de Louis XIV.
Including works edited by him, a list of ninety-two pieces is given in the Naudaeana. The chief are:
- Le Marfore, ou discours contre les libelles (Paris, 1620), very rare, reprinted 1868;
- Instruction à la France sur la vérité de l'histoire des Frères de la Roze-Croix (1623, 1624), displaying their impostures;
- Apologie pour tous les grands personages faussement soupçonnez de magie (1625, 1653, 1669, 1712), Pythagoras, Socrates, Thomas Aquinas Jerome Cardan and Solomon are among those defended;
- Advis pour dresser une bibliothèque (1627, 1644, 1676; translated by John Evelyn, 1661), full of sound and liberal views on librarianship and considered as a founding stone of library science;
- Addition à l'histoire de Louys XI (1630), this includes an account of the origin of printing;
- Bibliographia politica (Venice, 1633, etc.; in French, 1642);
- De studio liberali syntagma (1632, 1654), a practical treatise found in most collections of directions for studies;
- De studio militari syntagma (1637), esteemed in its day;
- Considérations politiques sur les coups d'êtat. A disciple of Machiavelli, he considered that politics must be rendered "autonomous from morality, sovereign in relation to religion" 
Advice on establishing a library
Advice, written as a set of instructions for a private collector and was based on Naudé's own experience and research. In the introduction of his book, Naudé wrote that he is not an expert in the field of librarianship but he presented what he believed to be the most important ideas. He based some of the opinions in Advice on his own experience in Mesme's library, and wrote out for Mesme the accepted practices and principles of librarians of the time. Chapters covered topics such as number of books, selecting the books, procuring the books, etc.
Naudé's first chapter poses the question, "Why establish a library?" He answers the question with a simple message; there is no greater honor than building a great library and sharing it with the public. Naudé believes libraries should model themselves after the best libraries of the world. The first task is to create a plan. Before a person can erect a library, he must educate himself on the subject of collecting and organizing books. A person must also seek the guidance of those who have already built their own libraries or are in the process. He suggests studying and copying the catalogues of other libraries.
Naudé devotes an entire chapter to book selection, remarked upon throughout. The first authors who need to be purchased are those considered experts in their respective fields. No matter whether they are ancient or modern works, if a book is held in high regard by practitioners of a particular field then it should be present in any collection. In addition, any well known interpretations or commentaries that exist are a necessity. Naudé suggested purchasing books in the original languages because meaning can often be lost in translation. He is strongly against censorship of any kind. Naudé believes that every book has a reader regardless of the subject; and that information should be free and available. Readers could always find use of a book, even if it is to refute the ideas presented on its pages. Certain books are popular at times but later forgotten; he argued that it would be beneficial to a library if there were multiple copies of these books to accommodate the popular tastes of the times.
In his chapter on book acquisition, Naudé gave tips. The easiest way is to purchase another library in its entirety. Naudé went on to praise second-hand book sellers who often provided good books at cheap prices. Naudé himself browsed book-binding and printing shops for used paper, and had once discovered a rare manuscript that a book binder was using as scrap paper.
Naudé included a chapter in Advice for arranging the books. In discussing arrangement he quoted Cicero, "It is order that gives light to memory." He gave instructions that he considered logical. His subject headings included: theology, philosophy, jurisprudence, medicine, history, mathematics and humanities. Naudé would add other subject heading in later years but these categories best represented the known body of knowledge in the world. Each section should be divided into subheadings and begin with the principal authors followed by the commentaries.
- Jack Clarke, Gabriel Naudé (Hamden, Connecticut: Archon Books, 1970), 3.
- Clarke, 3.
- Clarke, 4.
- Clarke, 8.
- World Encyclopedia of Library and Information Services, 3rd Ed., s.v. "Gabriel Naude".
- Clarke, 76.
- French : « abolir toute idée de droits autres que ceux du chef » et rendre « la politique autonome par rapport à la morale, souveraine par rapport à la religion ».
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Naudé, Gabriel". Encyclopædia Britannica (11th ed.). Cambridge University Press.
- Gabriel Naudé (1627; 1644, 2nd edition, reprinted 1876). Advis pour dresser une bibliothèque (Advice on Establishing a Library). Paris: Isidore Liseux (2nd ed. reprint). Copies 1 & 2 at Internet Archive.
- Gabriel Naudé (1950). Advice on Establishing a Library (translation of Advis pour dresser une bibliothèque). Berkeley: University of California Press. OCLC 573923. Westport, Connecticut: Greenwood Press (1976 reprint). OCLC 2020512.
- James V. Rice. Gabriel Naudé, 1600-1653 (Baltimore: Johns Hopkins Press, 1939).
- Sidney L. Jackson. "Gabriel Naude: 'Most Erudite and Most Zealous for the Common Good,'" Stechert-Hafner Book News 23 (5 January 1969)
- Biography of the Bibliothèque Nationale de France (BNF) (French)
- Gabriel Naudé: symbols, representations and rituals in the Coup d'État by Joseph Parada F.