Legal
The cookies and similar technologies we use, and why.
Last updated: 13 May 2026
This Cookie Policy explains what cookies and similar technologies TrueBooks uses, what they do, and the choices you have. It supplements our Privacy Notice and forms part of our Terms of Service.
We comply with the Privacy and Electronic Communications (EC Directive) Regulations 2003 (“PECR”) as amended, and with the UK GDPR. We use only strictly-necessary cookies. Under PECR Regulation 6(4), strictly-necessary cookies do not require your consent. We do not use advertising, behavioural-tracking, or third-party analytics cookies, so no cookie banner is presented.
A cookie is a small text file that a website places on your device when you visit. Cookies are widely used to make websites work efficiently, to remember preferences and to keep users signed in securely. Some technologies that are not strictly cookies — such as local storage and session storage — have similar effects and are covered by the same rules. For brevity we refer to all of them as “cookies” below.
The following cookies may be set in your browser when you use TrueBooks.
| Cookie | Purpose | Lifetime | Category |
|---|---|---|---|
__Secure-next-auth.session-token (or next-auth.session-token on http localhost) | Keeps you signed in. Set after a successful login; cleared on sign-out. | 30 days | Strictly necessary |
__Host-next-auth.csrf-token | Cross-site-request-forgery (CSRF) protection on auth requests. | Session | Strictly necessary |
__Secure-next-auth.callback-url | Stores the URL to return to after sign-in. | Session | Strictly necessary |
__Host-next-auth.pkce.code_verifier / __Host-next-auth.state | Securely completes OAuth sign-in (Xero, Google). | 15 minutes | Strictly necessary |
__Host-tb-2fa-trust | Optional. Remembers a trusted device so you do not have to re-enter a two-factor code each time you sign in from it. Set only if you tick “Remember this device for 30 days” at the 2FA prompt; can be revoked from Settings → Security at any time. | 30 days | Strictly necessary (security) |
__Host-tb-imp | Set only when a TrueBooks administrator is viewing your account in read-only support mode (impersonation). Time-limited to 15 minutes. Has no effect on, and is never set by, a regular user. | 15 minutes | Strictly necessary |
tb_theme | Remembers your dark/light theme preference so the page renders without a flash of the wrong colour on the next visit. | 1 year | Strictly necessary (functional) |
| Amazon / Xero / Alibaba / eBay OAuth state cookies | Short-lived state values used during the OAuth handshake when you connect a third-party platform. | 10–15 minutes | Strictly necessary |
We use the browser’s localStorage and sessionStorage to keep small, non-sensitive UI state on your device, such as:
These values are stored only on your device, are not transmitted to our servers, and are cleared when you sign out or clear site data.
We do not embed third-party scripts that set their own cookies on TrueBooks pages, with one exception:
js.stripe.com iframe for security and fraud prevention. Those cookies are governed by Stripe’s cookie policy. app.chatwoot.com origin to maintain the conversation state. Those cookies are governed by Chatwoot’s own policy.Because all cookies we set are strictly necessary for the Service to function, blocking them may prevent you from signing in or completing key actions. You can nevertheless control cookies through your browser settings:
To revoke the optional “Remember this device for 30 days” trust cookie, sign in and go to Settings → Security → Trusted Devices and click Revoke Trust on the device you want to remove.
Our servers honour the meaning of the Do-Not-Track (DNT) header in the sense that we do not track you for advertising regardless of the header value. Because we do not perform cross-site behavioural tracking at all, DNT does not change our behaviour.
If we add a new cookie or change how existing cookies are used, we will update this page with the new “Last updated” date and, where the change is material, notify signed-in users by email or in-app banner.
Questions about cookies should be addressed to support@truebooks.co.uk.
TrueBooks is an independent third-party solution. TrueBooks is not affiliated with, endorsed by, sponsored by, or otherwise associated with Amazon.com, Inc. or any of its subsidiaries. Amazon, Amazon Seller Central, Selling Partner API, FBA, and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. Xero is a registered trademark of Xero Limited. All other trademarks are the property of their respective owners. See our Amazon disclaimer for more detail.