Louis-Antoine Caraccioli (1719-1803, Paris) was a French writer and traveler. Caraccioli wrote books on history, politics and theology, but also a travel-guide entitled Le Véritable Mentor, ou l’éducation de la noblesse (1755). Moreover, he authored works on the history of Poland, such as the Lettres à une illustre morte décédée en Pologne depuis peu de temps (1770) and La Pologne telle qu’elle a été, telle qu’elle est, telle qu’elle sera (1775). In Poland he was tutor to the sons of Wacław Rzewuski, hetman. His Véritable Mentor was a travel guide written for rich noblemen. The author explains how to travel around Europe safely, which places to visit, and what company to frequent during travels. Thanks to Caraccioli’s letters to hetman Rzewuski written during his journeys throughout Europe with the latter’s sons, we learn about the details of these journeys. We can compare the travel programme presented in the book with the real travels undertaken by Carracioli and his pupils, from Vienna to Rome and Paris. The manuscripts of these letters and a book of travel expenses are preserved at the National Library in Warsaw and the Krakow State Archives. Le Véritable Mentor testifies in an exemplary way to the influence of French thought on the Polish nobility’s education of the time, however more marked by “enlightened Catholicism” than by the Enlightenment of the French philosophes.