You agree to the privacy policy below, and the Privacy Policy for Substack, the technology provider.

Privacy Policy

Last updated: 02/2026

This Privacy Policy explains how Fifth Column Library handles information collected through this Substack publication.

1. Information We Collect

When you subscribe, Substack collects and stores:

  • Your email address

  • Your subscription preferences

  • Basic engagement data (such as opens and clicks)

We do not collect sensitive personal information, payment details, or private data directly. All subscription management is handled through Substack’s platform.

2. How Your Information Is Used

Your email address is used solely to:

  • Send posts and updates from this publication

  • Notify you when new materials are added to the library

  • Manage your subscription preferences

We do not sell, rent, or share subscriber information with third parties.

3. Substack’s Role

This publication operates on Substack. Your data is stored and processed according to Substack’s Privacy Policy and security practices.

You can review Substack’s policies here:
https://substack.com/privacy

4. Email Preferences & Unsubscribing

You may unsubscribe or change your email preferences at any time using the links provided at the bottom of every email.

You may also choose to remain subscribed while disabling email notifications.

5. Cookies & Tracking

Substack may use cookies and analytics to measure engagement and improve delivery. This data is anonymous to us and used only in aggregate form.

6. Data Retention

Your email remains in the subscriber list until you unsubscribe. Once unsubscribed, you will no longer receive emails from this publication.

7. Contact

If you have questions about this Privacy Policy, contact:
Privacy Policy

Last updated: [Month Year]

This Privacy Policy explains how [Publication Name] handles information collected through this Substack publication.

1. Information We Collect

When you subscribe, Substack collects and stores:

  • Your email address

  • Your subscription preferences

  • Basic engagement data (such as opens and clicks)

We do not collect sensitive personal information, payment details, or private data directly. All subscription management is handled through Substack’s platform.

2. How Your Information Is Used

Your email address is used solely to:

  • Send posts and updates from this publication

  • Notify you when new materials are added to the library

  • Manage your subscription preferences

We do not sell, rent, or share subscriber information with third parties.

3. Substack’s Role

This publication operates on Substack. Your data is stored and processed according to Substack’s Privacy Policy and security practices.

You can review Substack’s policies here:
https://substack.com/privacy

4. Email Preferences & Unsubscribing

You may unsubscribe or change your email preferences at any time using the links provided at the bottom of every email.

You may also choose to remain subscribed while disabling email notifications.

5. Cookies & Tracking

Substack may use cookies and analytics to measure engagement and improve delivery. This data is anonymous to us and used only in aggregate form.

6. Data Retention

Your email remains in the subscriber list until you unsubscribe. Once unsubscribed, you will no longer receive emails from this publication.

7. Contact

If you have questions about this Privacy Policy, contact:
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