Privacy Policy

Who we are

This site, appliedendtoendflow.com, is operated by Applied Flow Press, an imprint of Curtis Hibbs and Joshua Barnes. The site supports the Applied End-to-End Flow Series of books and related content.

What we collect

We collect the minimum we need to operate the site, measure how it is used and respond to you.

• Information you give us directly. If you write to [email protected], we receive your contact details and the contents of your message. If you subscribe to our newsletter through the Substack form, Substack collects your email address. If you signed up through our earlier form, we may also hold the Name, Last name, Company, Role / Title, and Questions or comments you provided.
• Standard server logs. Cloudflare, our hosting provider, records technical information about visits: IP address, user agent, request path, timestamps. This is normal web infrastructure and we use it for security and basic operational diagnostics.
• Site analytics. This site uses Cloudflare Web Analytics, which collects website usage and performance information: page views, visits and page load times, which we see broken down by page, browser, operating system and country. Cloudflare's privacy policy explains its data practices.
• Knowledge Base questions. If you use Ask the Knowledge Base, the text of your question is sent to Cloudflare so it can retrieve public site content and generate an answer. Do not enter confidential, personal, or client information. The site does not store a conversation history in your browser.
• Cookies and browser storage. Cloudflare may set essential cookies. Pages with the newsletter form embed Substack's signup form, which may use cookies or browser storage to operate that form. We do not run cross-site advertising trackers or analytics that profile you across sites.

Why we collect it

• To answer your messages.
• To send you the newsletter emails you signed up for (articles, announcements, free Executive Summary Edition PDF, related content).
• To keep the site running and protect it from abuse.
• To retrieve public source pages and generate answers when you use Ask the Knowledge Base.
• To measure how the site is used and how well it performs.

Who we share it with

We share data with the third parties we use to run the service:

• Cloudflare (United States) hosts the site, routes messages sent to our site email address, provides the retrieval and generation service behind Ask the Knowledge Base, and provides the site's analytics. They process server logs, site analytics, email-routing data, and submitted Knowledge Base questions on our behalf.
• Google provides Gmail, where our correspondence arrives, and serves the Lato font files used by the site. Requests for those font files disclose normal connection data, including IP address and user agent, to Google.
• Substack hosts our newsletter, Applied Strategy Execution. It stores subscribers and sends confirmation, welcome, and newsletter emails, and it handles that data under its own privacy policy. In November 2026 we moved the email addresses of active mailing list subscribers to Substack.
• MailerLite, our previous mailing list provider, holds records of earlier signups until we close that account.

We do not sell, rent, or trade your personal data to anyone.

How long we keep it

Email correspondence: retained for as long as the conversation is operationally useful, then archived or deleted. Newsletter signups: retained until you unsubscribe or ask us to delete them. Server logs, site analytics and Knowledge Base query records: retained by Cloudflare according to the service settings and their standard policy. We also keep daily page view and visit totals for each page.

Your rights

You can:

• Ask what data we hold about you.
• Ask us to correct it.
• Ask us to delete it.
• Unsubscribe from the newsletter at any time using the link in any email we send.

Email [email protected] for any of the above. Allow a few business days for a response.

Children

This site is intended for adult professional readers. We do not knowingly collect data from children under 13. If you believe a child has submitted personal information here, contact us and we will delete it.

International users

We operate from the United States. If you visit this site from outside the United States, your information is processed in the US under US law. By using the site, you consent to that transfer.

Changes to this policy

We may update this policy as the site evolves, for example if we add a contact form or another service provider. The effective date at the top reflects the most recent version. Material changes will be noted in newsletter communication.

Contact

Questions about this policy: email [email protected].