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  1. Terms of Use

Terms of Use

Last updated 2026-08-19

Using this site

This website is published by General Onologic Soft for information about our mathematics education programs and publications.

You may read, print, and share these pages for personal or educational use. Please do not republish them commercially, or present them as your own.

Our content

Text, book covers, videos, illustrations, logos, and the GOS and LAS names on this site belong to us or to our licensors, and are protected by copyright and trademark law.

Accuracy

We work to keep the information here correct and current, but we make no warranty that it is complete or error-free. Book titles, series structure, and availability may change.

Links to other sites

Some links lead to services we do not run, such as YouTube. We are not responsible for their content or their practices.

Liability

To the fullest extent permitted by law, we are not liable for any loss arising from the use of this website.

Governing law and contact

These terms are governed by the laws of the State of California, United States.

Questions: gosalascto@gmail.com · Suite 457, 5201 Great America Pkwy, Santa Clara, CA 95054

GOS | LAS

We connect knowledge, harmony, and love, and create a better future through education.

gosalascto@gmail.comSuite 457, 5201 Great America Pkwy, Santa Clara, CA 95054

Math Letters

Why Math Letters?Math Letters LibrarySubscribe

About Us

Global Math StandardsConsumer-Centered EducationAI Education MatrixFrom Knowledge to Communication

Books & Publishing

Senior MathKids' MathElementarySecondaryPSS SeriesTeacher’s GuideMaterials

AI & Digital

Math AI AlgorithmG-LLMG-LMMIT-Based Math BooksDT-Based Math Books

Platform Ecosystem

Communication ChannelAI MatrixG-Coin

Education Services

Subscription BooksManaged MembershipInstructional MembershipLiberal Arts Education

Resources

Company ProfileBrochuresCatalogBrand AssetsDownloads

News & Events

NewsEventsBlogWebinarsSeminars

ESG

Educational ImpactSocial ContributionSustainability

Contact

Contact UsPartnershipsCareersFAQ
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