Litt has developed his philosophic and pedagogic theories in numerous books, a lifework which, in breadth and depth of vision, in fullness of thought, in clarity and logical precision, combined with the highest stylistic mastery, is scarcely to be equalled. A few of his most important works can be mentioned here: Individuum und Gemeinschaft, Ethik der Neuzeit, Kant und Herder als Deuter det geistigen Welt, Denken und Sein, Wege und Irrwege geschichtliche Denkens, Einleitung in die Philosophie.