Legal notice
Legal Disclaimer & Non-Affiliation Notice
Mahj Mastery is an independent educational brand created and operated by Vistra Digital Srls.
All guides, cheat sheets, reference cards, scoring sheets, and other materials available on this website are original works created exclusively by Mahj Mastery.
Mahj Mastery is not affiliated with, endorsed by, sponsored by, or in any way officially connected to the National Mah Jongg League (NMJL), the Siamese Mah Jongg® League, or any other official Mah Jongg organization or governing body.
The names “National Mah Jongg League,” “NMJL,” “Siamese Mah Jongg®,” and any other third-party trademarks mentioned on this website are the property of their respective owners and are referenced solely for descriptive and educational purposes, in accordance with the principle of nominative fair use.
Our products:
- are not official cards
- are not replacements for official cards
- are not produced in partnership with any official organization
They are independently created educational tools designed to help players better understand and enjoy the game of American Mah Jongg.
All content, layout, design, text, and graphics on this website and within our digital products are original works protected by copyright.
© Mahj Mastery / Vistra Digital Srls. All rights reserved.
Unauthorized reproduction, redistribution, or resale is strictly prohibited.
Intellectual Property & Copyright Notice
All content published on mahjmastery.com and contained within our digital products — including but not limited to written guides, cheat sheets, reference cards, scoring sheets, printable tiles, graphics, layouts, and instructional text — is the exclusive intellectual property of Mahj Mastery / Vistra Digital Srls and is protected under applicable copyright law, including but not limited to:
- The Berne Convention for the Protection of Literary and Artistic Works
- Relevant European Union copyright directives
- The U.S. Copyright Act
© Mahj Mastery / Vistra Digital Srls. All rights reserved.
Without prior written permission from Mahj Mastery, you may not:
- Reproduce, copy, or duplicate any content from our products or website, in whole or in part
- Distribute, sell, sublicense, or transfer our digital products to any third party
- Modify, adapt, translate, or create derivative works based on our content
- Use our content for commercial purposes, including resale, bundling with other products, or incorporation into paid courses or services
- Share, upload, or post our digital files on any platform, website, or file-sharing service
Personal Use License
Upon purchase, you are granted a limited, non-exclusive, non-transferable license to download, print, and use the purchased digital product for your personal, non-commercial use only.
The purchase of a product does not transfer any intellectual property rights to the buyer.
Commercial Use Requests
If you wish to obtain a commercial license or request permission for any other use of our materials, please contact us at: