During the year 1906, Ludovici was private secretary to the sculptor Auguste Rodin, and as such had a close association with him. He later wrote of his personal experiences of Rodin's personality and art, as well as his own opinions, in articles first appearing in the Cornhill Magazine from 1923, and in 1926 published in a book "Personal Reminiscences of Auguste Rodin". In the summer of 1908 he first met and befriended Dr. Oscar Levy, editor of "The Complete Works of Friedrich Nietzsche", the first translation of Nietzsche's works in English. Ludovici contributed several volumes. Levy introduced him to his future wife Elsie F. Buckley. He began lecturing on art, politics, religion, and the philosophy of Friedrich Nietzsche, about whom he wrote "Who is to be Master of the World?: An Introduction to the Philosophy of Friedrich Nietzsche" (1909) and "Nietzsche: His Life and Works" (1910). Nietzsche scholar William Mackintire Salter called "Nietzsche: His Life and Works" "the well-nigh perfect short manual" on Nietzsche. His pioneering work on Nietzsche's æsthetic: “Nietzsche and Art”(1911) was one of the first attempts of its kind in Europe. It was based on a course of lectures Ludovici had delivered at University College, London, during November and December, 1910. According to Steven Aschheim, his 1911 "Nietzsche and Art" was "a unique attempt to write a Nietzschean history of art in terms of rising aristocratic and decadent-democratic epochs". This was the year of the first Parliament Act 1911, cutting back the power of the House of Lords. It also marks a watershed or change in Ludovici's writing, to a more overt political line, which would only sharpen over the next 25 years.