Here are some books on the topic that have been mostly translated from German.
Cell Earth Books – Concave Earth Theory – Cellular Cosmogony – Skycentrism
Cellular Cosmogony or the Earth a Concave Sphere Part 1 and 2: The New Geodesy by Cyrus Teed and U.G. Morrow (1898)

http://joedubs.com/wp-content/uploads/2024/10/Cellular-Cosmogony-or-the-Earth-a-Concave-Sphere-Part-1-and-2-Universology-of-Koreshanity-The-New-Geodesy-by-Cyrus-Teed-and-U.G.-Morrow-1898.pdf
Synopsis: https://concaveearth.net/t/the-cellular-cosmogony-the-earth-a-concave-sphere-pt-i-and-ii-the-new-geodesy-by-by-koresh-teed-ulysses-g-morrow/447
Die Hohlwelttheorie (The Hollow World Theory) by Johannes Lang – English translation (1938)

http://joedubs.com/wp-content/uploads/2024/10/Johannes-Lang-Die-Hohlwelttheorie-The-Hollow-World-Theory-English-translation-1938.pdf
Synopsis: https://concaveearth.net/t/johannes-lang-die-hohlwelttheorie-the-hollow-world-theory-1938-english-translated/450
The New Worldview The Hollow World Theory Part 1 and 2 – Johannes Lang – translated to English from German (1949)
Part 1 and 2: with illustrations (dark mode)
LANG JOHANNES : NEUPERT KARL – OUR KNOWLEDGE OF BEING (THE UNIVERSE IN THE GLOBE) (THE TRUE NATURE OF THE COSMOS) with illustrations translated (1926)

http://joedubs.com/wp-content/uploads/2024/10/LANG-JOHANNES-NEUPERT-KARL-OUR-KNOWLEDGE-OF-BEING-THE-UNIVERSE-IN-THE-GLOBE-THE-TRUE-NATURE-OF-THE-COSMOS1926-with-illustrations-translated.pdf
Supreme Harmony of Universe – Endospherical Field Theory by Paolo Emilio Amico Roxas – (Italian) translated, 1990

http://joedubs.com/wp-content/uploads/2024/10/Supreme-Harmony-of-Universe-Endospherical-Field-Theory-by-Paolo-Emilio-Amico-Roxas-Italian-Translated-1990.pdf
Paolo Emilio Amico-Roxas Endospherical Field Theory Diagrams Translated
http://joedubs.com/wp-content/uploads/2024/09/Paolo-Emilio-Amico-Roxas-Endospherical-Field-Theory-Diagrams-Translated.pdf
Spanish Blog: The “Supreme Harmony of the Universe” (Endospheric Field Theory, or “Cosmocentric System”).
https://teoriaendosfericadelcampo.blogspot.com/
The Problem with Space and Time Paolo Emilio Amico-Roxas (1960)
THE PROBLEM OF SPACE AND THE CONCEPTION OF THE WORLD THE ENDOSPHERIC THEORY OF THE FIELD OR COSMOCENTRIC SYSTEM Roxas 1960
The Fight against the Copernican Worldview by Karl E. Neupert (1928)
GEOKOSMOS – WORLDVIEW OF THE FUTURE by Karl Neupert (1942)

http://joedubs.com/wp-content/uploads/2024/10/Geokosmos-Karl-Neupert-1942-Translated.pdf
Synopsis: https://concaveearth.net/t/geocosm-worldview-of-the-future-by-karl-neupert-1942-english-translation/449/5
World Puzzle Universe – Astronomy Under Cross-Examination by Alfred Müller 1949

http://joedubs.com/wp-content/uploads/2024/10/World-Riddle-Universe-by-Alfred-Muller-1949-.pdf
The Three Story Universe of the Bible by Fritz Braun (1949)
Dark Mode translation with illustrations:
Turning Point in the World by Fritz Tauscher (1997)

http://joedubs.com/wp-content/uploads/2024/10/Fritz-Tauscher-Turning-Point-in-the-World-1997.pdf
Turning Point in the World by Fritz Tauscher – 1997 – Illustrations Translated (German)
http://joedubs.com/wp-content/uploads/2024/10/Turning-Point-in-the-World-by-Fritz-Tauscher-1997.pdf
The Inner World of the Cosmos by Helmut I Diehl – 2003
Dark Mode JoeDubs translation: https://joedubs.com/wp-content/uploads/2025/02/Inner-World-Cosmos-by-Helmut-I.-Diehl-2003-JoeDubs-DarkModeTranslation.pdf
Black on White: https://joedubs.com/wp-content/uploads/2025/02/Inner-World-Cosmos-by-Helmut-I.-Diehl-2003-JoeDubs-Black-on-White.pdf
Overview: https://concaveearth.net/t/the-inner-world-of-the-cosmos-by-helmut-diehl-2003/535
The Biblical Worldview by Unknown (Dutch translation) – 1981
Click to access The-Biblican-Worldview-Het-Bijbels-wereldbeeld-Dutch-English-Translation.pdf
Overview https://concaveearth.net/t/the-biblican-worldview-het-bijbels-wereldbeeld-english-translation/511
Geometry and Cosmos by Ernst Barthel (1939)
Geometry and Cosmos by Ernst Barthel (1939)
Heaven and Earth NotebookLM Model:
Ask it questions, it’ll give answers based on these books.











