Contact Us

Let’s Build the Future of Education Together

We believe meaningful connections create new possibilities. Whether you’re interested in our programs, partnerships, or business opportunities, we’d love to hear from you.

  • Education & Programs

    Educational programs and services.

  • Partnerships

    Collaboration and strategic opportunities.

  • Business Inquiries

    Business development and partnerships.

  • General Inquiries

    Questions and feedback.

CONTACT US

Have a question, an idea, or an opportunity to collaborate?

Let’s start a conversation.

gosalascto@gmail.com

Before You Write

Many questions already have an answer on the FAQ page

  • what Math Letters are
  • whether they cost anything
  • which book series exist
  • what we do with your information

Check FAQ first.

If your question is there, you have your answer in a few seconds instead of a few days.

What to Put in Your Message

Every message arrives in the same inbox, so a clear first line helps it reach the right person quickly.

  • A bookSeries and title
  • A Math LetterEpisode number or title
  • Working togetherWhat you propose, in one paragraph
  • Joining usWhich of our four areas, and your CV attached

Reporting a Mistake

If you find an error in a book or a Math Letter, please tell us. Mathematics teaching depends on being right, and a reader who checks carefully is doing us a favour.

Send the series and title, the page or episode, and what you believe is wrong.

Where We Are

산타클라라 사옥 둘레

GOS Education (General Onologic Soft) is based in Santa Clara, California.

The postal address and email address are in the footer of every page.

교정에서 세계로

Who You'll Reach

Every message goes into one inbox, but it is read by people across seven groups. Knowing the shape of the company helps explain why a reply about a book differs from a reply about a partnership.

Board of DirectorsGovernance and oversight
CEOSix groups report here
  1. Education & ContentGroup
    • Research
    • Curriculum
    • Publishing
    • Creative
    • Educational Media
    5 teams
  2. Digital & AI TechnologyGroup
    • Digital Product
    • AI R&D
    • Engineering
    • Data
    • Infrastructure
    5 teams
  3. Global BusinessGroup
    • North America
    • Asia-Pacific
    • Europe
    • Global Sales
    • Rights & Licensing
    5 teams
  4. Strategy & GrowthGroup
    • Strategy
    • M&A
    • Marketing
    • Communications
    • Brand
    • Partnerships
    6 teams
  5. Business OperationsGroup
    • LAS Library
    • LAS Pool
    • LAS On
    • LAS Mall
    • New Ventures
    5 teams
  6. Corporate ManagementGroup
    • Finance
    • HR
    • Legal
    • Compliance
    • Audit / SOX
    • Corporate Services
    • Executive Office
    7 teams

Continue reading

Read the FAQ

Next in ContactRead the FAQ