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Worlds of Speculative Fiction

Dr. Sadler's monthly talk series on narrative worlds and philosophical themes of speculative fiction, available worldwide

Your Instructor


Gregory B. Sadler
Gregory B. Sadler

After a successful career as a college professor, researcher, and administrator, I started our company, ReasonIO (with my wife and partner, Andi Sciacca) in order to engage in philosophy in public, practical, and professional contexts.

I take difficult philosophical texts, thinkers, and topics, and make them accessible for everyday people. That's how philosophy gets traction and remains closely connected with real life!

The work I do with ReasonIO includes online course development and teaching, public speaking, organizational consulting, tutorial sessions, development of philosophy content, and philosophical counseling.

I am the Editor of Stoicism Today and the producer of the Half Hour Hegel series. To date, I have authored one book (Reason Fulfilled By Revelation), and dozens of articles, book chapters, and encyclopedia entries. Although I work in significant part outside of the academy, I remain actively engaged in research and scholarship.


In recent years, I have held a Research Residency at the Institute for Saint Anselm Studies, been a Visiting Scholar position at European Graduate School, and was a Charles Chesnutt Library Fellow.


Class Curriculum


  Coming Soon - This Month and the Rest of the Year
Available in days
days after you enroll
  Session 12 - George R.R. Martin's Song of Ice and Fire (December 2016)
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days after you enroll
  Session 18 - Iain Banks Culture Series Galaxy (June 2017)
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days after you enroll
  Session 21 - C.L Moore's Fantastic Worlds (October 2017)
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days after you enroll
  Session 22 - Octavia Butler's Xenogenesis Trilogy (December 2017)
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days after you enroll
  Session 24 - Fritz Leiber's Fafhrd and the Grey Mouser Series
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days after you enroll
  Session 25 - Robert Heinlein's Novels of the Future
Available in days
days after you enroll

Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
Do I need to read all of the books discussed before I take this course?
No - you can read whatever works you want by the authors we are covering. You will likely get more out of the course if you do read some of the texts discussed.
What if I am unhappy with the course?
We would never want you to be unhappy! You can always unenroll from the course whenever you decide.

Get started now!