Get in touch
Contact us
Have questions, feedback, or suggestions? We'd love to hear from you.
Before you write
What reaches us, and what happens next
This form reaches the person who writes and maintains every exercise, lesson, and category page on the site, a human and not a chatbot. The most useful messages are specific: a wrong-seeming answer or explanation, a lesson section that confused you, a broken link, or a topic you'd like to see covered. Concrete reports get fixed fastest.
New exercise and lesson suggestions are welcome too, though the curriculum follows a deliberate sequence, so not every idea gets built. Recurring requests do shape the roadmap. Replies typically land within one business day, Monday–Friday, US Eastern time; accessibility issues and possible factual errors get priority. See the Privacy Policy for how submitted messages are handled.
The editors
Get in touch
Whether you have a question about our exercises, want to suggest new content for the learning path, or just want to share your critical thinking journey, we're here to listen.
contact@criticalthinkingexercise.org
We aim to respond within 24 hours
Response Time
Monday–Friday
9:00 AM–5:00 PM EST
Location
Online Platform
Serving learners worldwide
Frequently Asked Questions
- Are the exercises and lessons really free?
- Yes. Every exercise, every lesson, and every downloadable resource on the site is free and does not require an account. We do not sell learner data and there is no paid tier hiding behind the free one.
- Can I suggest a new exercise or topic?
- Please do. The most useful suggestions describe a real situation where you (or someone you watched) made a reasoning mistake, along with what pattern you think was at play. That kind of context lets us write questions that feel like the world, not like a textbook. Email contact@criticalthinkingexercise.org or use the form on this page.
- I spotted an error in a question or explanation. What should I do?
- Tell us, with as much detail as possible. Include the URL, the question, and why you think the current answer or explanation is wrong. Corrections are one of the highest-value emails we get and we act on them within a few days where the evidence supports a change.
- How fast do you reply?
- We aim to respond to every message within one business day (Mon–Fri). Technical bug reports and content corrections get priority; partnership and press inquiries may take a little longer because they are handled by one person.
- Do you offer classroom or organization licenses?
- There are no paid licenses because everything is already free for classroom and organizational use. If you would like to embed exercises, reference lessons in a syllabus, or adapt content for training, write to us. We are happy to coordinate and share a style guide for attribution.
- Can I contribute content or translations?
- Yes, both are welcome. For content contributions, the best starting point is drafting a single exercise in the same format as existing ones and sending it over. For translations, let us know which languages you can cover and we will share the source files plus a short editorial checklist.
- How do you handle privacy?
- The site is a static build with no user accounts, no analytics cookies that track individuals, and no third-party advertising. We only see the information you choose to email us. See the Privacy Policy for the full details.