Privacy Policy

Introduction

Personal Library ("we", "our", or "us") respects your privacy and is committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our service.

Information We Collect

When you sign in with Google OAuth, we collect:

• Your email address
• Your name
• Your profile picture (optional)
• Google account ID for authentication purposes

We also collect information you voluntarily provide, including:

• Book information (titles, authors, ISBNs, ratings, comments)
• Library and shelf organization data
• Tags and categories you create
• Lending records

How We Use Your Information

We use your information to:

• Authenticate your account and maintain your session
• Provide and maintain our service
• Associate your library data with your account
• Enable multi-user support with data isolation
• Communicate with you about service updates (if necessary)

Data Storage and Security

Your data is stored securely in a PostgreSQL database with industry-standard security measures. We use NextAuth.js for authentication with database sessions for enhanced security. Your library data is private and only accessible to you. We implement data isolation to ensure that users cannot access each other's information.

Third-Party Services

We use Google OAuth for authentication. When you sign in with Google, you are subject to Google's Privacy Policy and Terms of Service. We recommend reviewing these documents:

• Google Privacy Policy
• Google Terms of Service

We may also use optional third-party services like OpenAI for image analysis and Google Books API for book information lookup. Use of these features is optional.

Your Rights

You have the right to:

• Access your personal data
• Correct inaccurate data
• Delete your account and associated data
• Export your library data in various formats (CSV, JSON, MARC21)
• Withdraw consent and revoke access to your Google account

Data Retention

We retain your data for as long as your account is active. If you delete your account, all associated data (libraries, books, shelves, tags, and lending records) will be permanently deleted from our database through cascade deletion.

Cookies and Sessions

We use cookies to maintain your session and keep you logged in. These are essential for the service to function and are not used for tracking or advertising purposes.

Changes to This Policy

We may update this privacy policy from time to time. We will notify you of any significant changes by updating the "Last updated" date below. Continued use of the service after changes constitutes acceptance of the updated policy.

Contact Us

If you have questions about this Privacy Policy or wish to exercise your data rights, please contact us at: [your-personal-email]

Note: Replace [your-personal-email] with your actual email address before deploying to production.