Parerga and Paralipomena is a collection of philosophical reflections by Arthur Schopenhauer published in 1851. The selection was compiled not as a summation of or introduction to Schopenhauer's philosophy, but as augmentary readings for those who had already embraced it, although the author maintained it would be comprehensible and of interest to the uninitiated nevertheless. The collection is divided into two volumes, covering first the parerga and thereafter the paralipomena to that philosophy. The parerga are six extended essays intended as supplementary to the author's thought. The paralipomena, shorter elaborations divided by topic into thirty-one subheadings, cover material hitherto unaddressed by the philosopher but deemed by him to be complementary to the parerga.

Arthur Schopenhauer was a German philosopher. He is known for his 1818 work The World as Will and Representation, which characterizes the phenomenal world as the manifestation of a blind and irrational noumenal will. Building on the transcendental idealism of Immanuel Kant (1724–1804), Schopenhauer developed an atheistic metaphysical and ethical system that rejected the contemporaneous ideas of German idealism.