Terms of Service
Last updated: July 2026
The service
Systems Illustrated publishes educational material about software architecture: videos, free guides, a newsletter, and paid courses and digital products. By using the site you agree to these terms.
Free content
Articles, guides, and videos are provided free for personal and professional education. You may share links freely. You may not republish, scrape, or redistribute the content — in bulk or as-is — without written permission.
Purchases
Paid products are sold via Lemon Squeezy as merchant of record — your purchase contract for payment, taxes, and invoicing is with them, under their terms. Digital products are licensed to you personally: one purchase, one person, no redistribution or resale. Refunds are handled case by case; contact support@systemsillustrated.com within 14 days of purchase.
Newsletter and guide signups use double opt-in and are governed by ourprivacy policy. Unsubscribe at any time with one click.
No professional advice
Content is educational and provided "as is", without warranty of any kind. Architecture decisions are yours: nothing here is engineering, legal, or financial advice for your specific situation, and we are not liable for decisions made from it to the maximum extent permitted by law.
Intellectual property
All content, diagrams, animations, and branding are the property of Systems Illustrated unless otherwise noted. Trademarks and product names mentioned belong to their respective owners.
Changes
We may update these terms; material changes will be noted on this page with a new date. Continued use after changes constitutes acceptance.
Contact
Questions: support@systemsillustrated.com.