Sämtliche Werke;
Sämtliche Werke is a German philosophical edition of Arthur Schopenhauer's collected writings, edited by Paul Deussen and published in Munich by Piper in 1911, aimed at scholars and general readers of German philosophy. Its pictures are simple Euler-style circle diagrams in black line on cream paper, showing overlapping and nested categories such as virtue, perfection and happiness, or animals and sea sponges, which a designer might borrow as a clean, abstract diagram language for showing relationships between sets.
