Cookie policy
Last updated October 20, 2026
Cookies we always use
These cookies are needed for the Site to work and do not track you across other websites.
| Cookie | Purpose | Duration |
|---|---|---|
| im_session | Keeps you signed in to your account | Up to 30 days |
| im_auth | Tells the page header that you are signed in (contains no account information) | Up to 30 days |
| im_cart, im_cart_n | Remembers the items in your cart and how many there are | 14 days |
| im_checkout | Links your browser to a checkout you started, so you can open your library after payment | 3 hours |
| im_ft | Records the first page you visited and the referring website (no personal data) so we can tell which pages are useful | 30 days |
Optional analytics
If you accept analytics, Google Analytics cookies are set to measure aggregate usage. They are not loaded if you decline. Your choice is stored in your browser's local storage under im_analytics_consent; clear it to be asked again.
Payments
When you check out, you are sent to Stripe's hosted checkout page, which sets its own cookies for payment processing and fraud prevention. See Stripe's privacy policy for details.
Advertising
We do not use advertising or remarketing cookies.