Ideen may refer to:
Ideen I, a 1913 philosophical work by Edmund Husserl (Ideen zu einer reinen Phänomenologie und phänomenologischen Philosophie – Erstes Buch: Allgemeine Einführung in die reine Phänomenologie, translated as Ideas Pertaining to a Pure Phenomenology and to a Phenomenological Philosophy – First Book: General Introduction to a Pure Phenomenology) Ideen II, a posthumous philosophical work by Edmund Husserl withheld until 1952 (Ideen zu einer reinen Phänomenologie und phänomenologischen Philosophie – Zweites Buch: Phänomenologische Untersuchungen zur Konstitution, translated as Ideas Pertaining to a Pure Phenomenology and to a Phenomenological Philosophy – Second Book: Studies in the Phenomenology of Constitution) Ideen III, a posthumous philosophical work by Edmund Husserl withheld until 1952 (Ideen zu einer reinen Phänomenologie und phänomenologischen Philosophie – Drittes Buch: Die Phänomenologie und die Fundamente der Wissenschaften, translated as Ideas Pertaining to a Pure Phenomenology and to a Phenomenological Philosophy – Third Book: Phenomenology and the Foundations of the Sciences) Ideen & Argumente, philosophical book series edited by Lutz Wingert Deutschland – Land der Ideen, a German national marketing initiative (German Wikipedia)
See also Idea Ide (disambiguation) Ideas (disambiguation) Ides (disambiguation) Idee (disambiguation)