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Non-Fiction Books in Order
Below you'll find the complete list of Non-Fiction books in publication order. This is generally the recommended reading order for the series.
Reading order verified: March 2026
Quick Answer
What order should I read the Non-Fiction series? Start with "The Subnuclear Zoo (With: Rick Roberson)" (1977) and follow publication order through all 10 books.
The complete Non-Fiction reading order is listed below in publication sequence.
Publication Order

The Subnuclear Zoo (With: Rick Roberson)
1977

Tool for Tomorrow (With: Rick Roberson)
1979

The Planet-Girded Suns
2012

Reflections on Enchantress from the Stars and Other Essays
2019

From This Green Earth: Essays on Looking Outward
2019

The Future of Being Human and Other Essays
2020

Selected Essays on Enchantress from the Stars and More
2021

Universe Ahead
1975

Anywhere, Anywhen: Stories of Tomorrow
1976
Journey Between Worlds – 1970
19
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