- "Eando Binder" was a pseudonym used by Otto and his brother Earl Andrew Binder (1904-1965), hence "E" and "O".
- His only daughter, Mary Lorine, died in 1967.
- Binder contributed a new sub-genre to science fiction: the first-person robot story.
- Binder published more than 40 books, novels and nonfiction works such as "Victory in Space," "Careers in Space," "The Moon," "The Planets," and "Riddles of Astronomy." He wrote more than 300 nonfiction articles and book reviews.
- He was the founder and editor of "Space World Magazine" and wrote extensively on unidentified flying objects.
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