Books on Concave Earth in the last 150 years from all around the world that have been translated from German, Italian, and Dutch.
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)
Synopsis: concaveearth.net
Die Hohlwelttheorie (The Hollow World Theory) by Johannes Lang – English translation (1938)
Synopsis: concaveearth.net
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)
Download PDF (dark mode, with illustrations)
LANG JOHANNES : NEUPERT KARL – OUR KNOWLEDGE OF BEING (THE UNIVERSE IN THE GLOBE) (THE TRUE NATURE OF THE COSMOS) with illustrations translated (1926)
Supreme Harmony of Universe – Endospherical Field Theory by Paolo Emilio Amico Roxas – (Italian) translated, 1990
Paolo Emilio Amico-Roxas Endospherical Field Theory Diagrams Translated
Download Diagrams PDF
Synopsis: concaveearth.net
Spanish Blog: The "Supreme Harmony of the Universe" (Endospheric Field Theory, or "Cosmocentric System").
teoriaendosfericadelcampo.blogspot.com
See also: concaveearth.net
The Problem of Space and the Conception of the World: The Endospheric Theory of the Field or Cosmocentric System by Paolo Emilio Amico Roxas (1960)
The Fight against the Copernican Worldview by Karl E. Neupert (1928)
GEOKOSMOS – WORLDVIEW OF THE FUTURE by Karl Neupert (1942)
Synopsis: concaveearth.net
World Puzzle Universe – Astronomy Under Cross-Examination by Alfred Müller 1949
The Three Story Universe of the Bible by Fritz Braun (1949)
Dark Mode translation with illustrations:
Synopsis: concaveearth.net
Turning Point in the World by Fritz Tauscher (1997)
Turning Point in the World by Fritz Tauscher – 1997 – Illustrations Translated (German)
Download PDF (German illustrations)
The Inner World of the Cosmos by Helmut I Diehl – 2003
Dark Mode JoeDubs translation: Download PDF
Black on White: Download PDF
Overview: concaveearth.net
The Biblical Worldview by Unknown (Dutch translation) – 1981
Overview: concaveearth.net
Geometry and Cosmos by Ernst Barthel (1939)
Recent additions to the archive
These titles have recently been added to the research archive. Each title links directly to its PDF.
A New World Discovered by O. F. Barcus (1917)
Shanghai: Kelly & Walsh. Open PDF.
The Overthrow of the Universe: The New World System by Karl Neupert (1929)
World-Mother Earth: The Universe an Organism by Karl Neupert (1940)
Inner World Cosmos by Roman U. Sexl (1983)
The Biological Worldview: The Egg World by Roland Dionys Jossé (1954)
Heaven and Earth NotebookLM Model
Ask it questions, it'll give answers based on these books.