Significant book: First edition of Freud's landmark Das Ich und das Es [The Ego and the Id], bound together with a third printing of Jenseits des Lustprinzips [Beyond the Pleasure Principle] and a second printing of Massenpsychologie und Ich-Analyse [Group Psychology and the Analysis of the Ego]. Leipzig, Wien, Zurich: Internationaler Psychoanalytischer Verlag, 1923. Hardcover, 6.5 x 9.25, 290 pages. Book condition: VG/None, with slight sunning to boards, bumped corners, and fraying to cloth spine. Accompanied by a custom-made clamshell case. One of Freud's most famous works and his last major contribution to psychoanalytic theory, Das Ich und das Es contains his elaboration on the concept of the superego or conscience as a product of parental criticism and prohibitions.
