His books investigate the work of Austrian engineer Hanns Hörbiger and German selenographer Philipp Fauth and the now-defunct Cosmic Ice (Glacial Cosmogony) Theory.
[1] Hans Schindler was an English teacher at the Folk High School in the Vienna district of Margareten.
The books he wrote with Peter Allen were awarded by the Sociedad Arqueológica de Bolivia in 1958.
In 1971 he finished a book by the deceased right-wing author Rudolf Elmayer von Vestenbrugg (1881-1970) Eingriffe aus den Kosmos (Interventions from Outer Space).
In 1975 Schindler delivered a lecture at the 2nd World Congress of the Ancient Astronaut Society in Zürich.