---
title: How library cards work on Your Book Nest
Metadescription: How digital library cards work in Your Book Nest - a ParkRun-style card patrons keep on their phone, showing a barcode of their handle. No plastic needed.
Display description: A library card in Your Book Nest is digital - a card your patron keeps on their phone, like a ParkRun barcode. It shows their name and a barcode of their handle, so they can identify themselves to borrow. There is no plastic, and nothing secret is on it.
author: Dan Edwards
author_role: Founder
author_url: https://danedwardsdeveloper.com
author_linkedin: https://www.linkedin.com/in/dan-edwards-developer
published: 2026-07-15
---

Token estimate: ~1,400

# How library cards work on Your Book Nest

By **[Dan Edwards](https://yourbooknest.com/contact)**, Founder.

A library card in Your Book Nest is digital. It is a card image a patron keeps on their phone - the same idea as the ParkRun barcode a runner saves once and scans at every event. It carries the patron’s name, the library’s name and a barcode of their handle. Its one job is to say who the patron is, so there is no plastic to print or post, and nothing secret sits on it.

## What is on a library card?

The library’s name, the patron’s name, a barcode, and when they joined. The barcode holds the patron’s handle - the same four words printed underneath, like `member-fable-folio-verse`.

That handle is the patron’s identity. It is safe to show, and it is not a password - a patron’s access code and their own password are never on the card.

## Why is a library card digital, not plastic?

Because a small library should not need a card printer, a laminator or a stack of blank cards. A patron who runs ParkRun makes the point - one barcode, saved to a phone, scanned for years - and a library card works the same way.

There is also nothing to reissue. If a patron changes phones, you send the card again in seconds, and the handle it shows does not change. You can print it onto plain paper if a patron prefers something physical, but that is a choice, not the point.

## How do I give a patron their card?

Open the patron’s page and find the Email & access section. Three buttons hand the card over whichever way suits the patron in front of you.

**Generate library card** opens it in a new tab to preview or print. **Download library card** saves it to the device to send on. **Show card QR** puts a QR code on screen that the patron scans with their phone camera, opening their own card on their phone to save.

## Can a patron get their own card?

Yes. A patron who signs in can open their card any time from Settings, with **View library card**. It opens on their phone, ready to save to their photos - so a patron who has signed in once need never ask you for it again.

## What is the card for?

Identifying the patron, so they can borrow without a librarian doing it for them. If your library runs a self-checkout screen, a patron borrowing a book reads the four words off their card, types them in and adds their access code or password. The card is the who; the code is the proof it is really them.

Returning and renewing ask for nothing at all - only borrowing, which puts a book in someone’s name, needs the code. At a staffed desk a librarian can scan the barcode, or simply look the patron up by name.

## Do I need a barcode scanner?

No. The four words on the card can always be typed, whether at a self-checkout screen or read out to a librarian. The barcode is a shortcut for a library that owns a scanner, never a requirement - the ParkRun model again, where the barcode is a convenience and a person can always be found by the number itself.

## What if a patron loses their phone?

Nothing on the card is secret, so a lost phone does not expose a patron’s account or let anyone borrow in their name - the access code and password that authorise borrowing are never on the card. Send the patron their card again from their page, or let them open it themselves once they have signed in on their new phone. The handle stays the same, so the replacement works exactly like the original.

## How Your Book Nest handles library cards

A library card is digital and optional - a patron keeps it on their phone like a ParkRun barcode, or not at all. It shows a barcode of the patron’s handle, which identifies them but proves nothing on its own. Borrowing at a self-checkout screen pairs it with the patron’s access code or password, while returning and renewing need neither. There is nothing secret on the card, so it is safe to send, save or lose.

## Q&A

**Q: Do patrons need a library card to borrow?**
A: No. A patron is a name you add, and a librarian can lend to them at the desk with no card at all. A card comes into its own at a self-checkout screen, where it identifies the patron so they can borrow themselves.

**Q: Is the barcode on the card a password?**
A: No. The barcode holds the patron’s handle, which only says who they are - safe to show or save. Borrowing also needs the patron’s access code or password, and that is never printed on the card.

**Q: Is there a plastic card to print or buy?**
A: No. The card is a digital image a patron keeps on their phone, like a ParkRun barcode. You can print it on plain paper if a patron wants something physical, but there is no plastic, no card printer and nothing to buy.

**Q: What happens if a patron loses their phone or card?**
A: Send it again from their page, or let them open it from Settings once they sign in on a new phone. The handle does not change, so the replacement works like the original - and because nothing secret is on the card, a lost one is not a security problem.