World Religions cover —
Photo Credit: amazon.com

Cover of Brave New World — Written by Aldous Huxley, the book cover art copyright is believed to belong to the publisher, Chatto and Windus (London), or the cover artist, Leslie Holland. First edition
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=8103565

Huxley in 1954 — Aldous Huxley - A Case For ESP, PK and PSI. Life Magazine. 11 January, 1954.
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=55152548

Animal Farm first edition cover 1945 —
Photo Credit: By Unknown author, Public Domain, https://commons.wikimedia.org/w/index.php?curid=22948416

Orwell, c. 1940 — digitally coloured
Photo Credit: By Cassowary Colorizations - George Orwell, c. 1940, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=73550374

1984 first-edition front cover —
Photo Credit: By George Orwell; published by Secker and Warburg (London) - Brown University Library, Public Domain, https://en.wikipedia.org/w/index.php?curid=10093993

Narcissus and Goldmund First Edition Cover — 1930 Fischer Verlag Berlin
Photo Credit: By User: Dipl.-Kfm. Thomas B. Jutzas - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=31515553

Hesse, Hermann: Der Steppenwolf — Berlin: S. Fischer 1927, 289 Seiten. Erstausgabe (Wilpert/Gühring² 155)
By © Foto H.-P.Haack (H.-P.Haack).Das Foto darf für wissenschaftliche oder populärwissenschaftliche Publikationen gebührenfrei verwendet werden, sofern der Urheber mit Foto H.-P.Haack vermerkt wird. - Antiquariat Dr. Haack Leipzig. -> Privatbesitz USA, CC BY 3.0,
Photo Credit: https://commons.wikimedia.org/w/index.php?curid=4049965

Steppenwolf Character relationship diagram —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=31622404

Gustav Ferdinand Hertz — Hamburger Jurist und Senator
Photo Credit: By Rudolf Dührkoop - Hamburgische Männer und Frauen am Anfang des XX. Jahrhunderts, Hamburg 1905, Public Domain, https://commons.wikimedia.org/w/index.php?curid=4103686

Cover of first edition of Siddhartha —
Photo Credit: By Thomas Bernhard Jutzas - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=21644628