License & Use Policy

All content published through Circudyne is licensed under Creative Commons Attribution–NonCommercial 4.0 International (CC BY-NC 4.0), unless otherwise noted.
You are free to use and share the content for non-commercial purposes, with proper attribution. Commercial reuse requires permission.

Creative Commons License (CC BY-NC 4.0)

All original content published on this site and in the Letter is licensed under the Creative Commons Attribution–NonCommercial 4.0 International License.

✅ You May

Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
As long as you:
- Give appropriate credit
- Do not use it for commercial purposes

❌ You May Not

Republish this work in commercial newsletters, books, or training programs
Use it in client-facing consulting deliverables or as part of a paid service
Include content in products or courses offered for sale

⚖️ Attribution Guidelines

When sharing or adapting this content, please include:

Originally published by Christian D. Rishel at Circudyne.
Licensed under CC BY-NC 4.0: https://creativecommons.org/licenses/by-nc/4.0/

Subscription Terms & Use

Membership & Access

By subscribing to Circudyne, either as a free or paid member, you gain access to exclusive content and email updates according to your selected tier:

Spark Members receive the public preview of The Circudyne Letter, including core analysis.
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Benefits may evolve over time as the offering grows. Significant changes will be communicated to all members in advance.

Billing & Cancellation

Paid subscriptions are billed securely via Stripe. You may choose monthly or annual billing.

You may cancel at any time via your account settings or by contacting info@circudyne.com.
Cancellation takes effect at the end of your current billing cycle.
We do not issue retroactive refunds except where legally required.

Email Communications

Subscribing to any tier means you consent to receive occasional emails including:

Your tier’s newsletter content
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Periodic reminders or offers related to your subscription

You may unsubscribe at any time via the link in any email.

Commercial Use

Your subscription grants personal, non-commercial access only to the licensed content.

Subscribing does not authorize use of content in paid training, commercial projects, consulting work, or internal distribution within organizations.
For commercial licensing, syndication, or bulk reuse requests, please contact Christian directly.

Last updated: July 2025