---
type: Documentation
title: Importing by identifier
description: This guide explains how to import publications into Librario by ISBN,
  DOI or another identifier.
resource: https://www.librario.de/en/docs/bibliothekswesen/importieren/kennungen-importieren
language: en
revision: e114aa541d24c57e452957a2313c85d2014b716b
tags:
- docs
- bibliothekswesen
- importieren
---

# Importing by identifier

![Imports overview page with existing imports, split into three parts: the import options on the left, the filters at the top and the table of finished imports with their status.](/de/docs/bibliothekswesen/importieren/uebersicht.webp)
_The Import by identifier area is in the middle on the left
Screenshot of the German interface._


Importing by identifier suits books, journal articles, preprints and standards whose identifier you know, for example printed books you want to catalogue in your library.
During the import, Librario searches library catalogues and specialist databases for metadata and adds it to the publication.
For ISBNs, Librario checks the German National Library first, then Open Library and Google Books, which also list books from international publishers.
It resolves DOIs through the DOI registration agency (for example Crossref), PubMed IDs through PubMed and arXiv IDs through arXiv.
This works for several kinds of identifier: **ISBNs** for books, **DOIs** for journal articles, **PubMed IDs** for medical literature, **arXiv IDs** for preprints and **standard identifiers** for standards (for example `EN 1992-1-1`).

If you have PDF files instead, use [Importing PDF files](/en/docs/bibliothekswesen/importieren/pdf-importieren), which also analyses the full text.

## Prerequisites

Librarians and admins can import publications.

To import a publication by identifier, the publication must carry a unique identifier.

For books, you usually find the ISBN as a barcode on the back cover or on one of the first pages inside.
Librario handles both the older ISBN-10 and the current ISBN-13.

For journal articles, look for the DOI, which is usually printed on the first page of the article.
A typical example looks like this: `10.1002/best.70139`.
Medical literature often also has a PubMed ID (PMID), which you can use for the import.

> **Prefer a DOI to an ISBN:**
> 
> Some books have both an ISBN and a DOI. In that case, use the DOI: the sources linked to it are usually more complete and more up to date.


## Importing a publication

To import a publication by identifier:

1. Click **Import** in the main navigation
2. Find the **Import by identifier** area on the left
3. Choose the identifier type (ISBN, DOI, PubMed ID, arXiv ID or Standard identifier) from the list
4. Enter the identifier in the input field
5. Click **Import**

Each import takes exactly one identifier.
For a shelf of books, the [barcode scanner](#scanning-a-barcode) is quicker.
To bring over a larger collection, see [Data migration](/en/docs/bibliothekswesen/best-practices/datenmigration).

![The "Import by Identifier" area: an input field for the identifier (ISBN, DOI and others) with an import button for adding publications quickly.](/de/docs/bibliothekswesen/importieren/kennung-importieren-start.webp)
_Starting an import by identifier
Screenshot of the German interface._


Once you click **Import**, the new publication appears straight away as an import in the list on the right, with the status **Pending**.
Librario completes the import on its own.
It takes these steps:

1. Librario uses the identifier to search several sources for the publication's metadata.
2. For books, Librario also downloads the table of contents as a PDF file where one is available.
   Full-text search uses it like an index, which improves the search results.

> **No metadata found?:**
> 
> Sometimes Librario finds no metadata for a publication. This is usually because the available sources do not cover the publication yet, or no longer cover it. This happens most often with older works, highly specialised literature or very recent publications. In that case, [catalogue the publication manually](/en/docs/bibliothekswesen/importieren/manuell-katalogisieren).
> 
> The import then has the status **Failed**. Cancel the import and finish editing the publication Librario created by hand.


## Scanning a barcode

Instead of typing the ISBN, you can scan the barcode on the back of the book with
your camera. Open the scanner with the **Scan barcode** button in the page header
or with the camera icon next to the ISBN field. Once Librario recognises the barcode,
check the ISBN in the confirmation dialog and start the import.

![Confirmation dialog of the barcode scanner with the recognised ISBN in the input field and buttons to import or scan again](/de/docs/bibliothekswesen/importieren/kennungen-importieren/barcode-scannen.webp)
_The scanner puts the recognised ISBN into the confirmation dialog.
Screenshot of the German interface._


## Duplicate detection

As soon as you click **Import**, Librario checks whether a publication with the same identifier is already in the library.
This helps you avoid unwanted duplicates and improves the quality of your library data.
Librario checks the identifier you entered (ISBN, DOI, PubMed ID, arXiv ID or standard identifier).

![Duplicate warning dialog in Librario: a notice that a publication with the same identifier already exists, with the options to cancel or force the import.](/de/docs/bibliothekswesen/importieren/kennung-importieren-duplikat-modal.webp)
_Duplicate warning during an import by identifier
Screenshot of the German interface._


**How it works:**

- If Librario finds a possible duplicate, a dialog appears that links to the existing publication (see screenshot)
- You decide whether to go ahead with the import or cancel it
- With **Force import**, Librario creates a new publication anyway
- With **Cancel**, Librario creates no import

## Adding hard copies

If you keep a physical copy of the publication in your library, you **should add at least one hard copy**, Librario's record of that copy on your shelves.
Right after the import, Librario shows a dialog for adding hard copies.
In it you record the exact location of the copy and can give it your own shelfmark.
You also decide whether the copy can be lent out or is a reference-only copy for use on site.

![Success dialog in Librario: shown after a publication import has been created, with the option to add physical copies.](/de/docs/bibliothekswesen/importieren/kennung-importieren-leihexemplare-hinzufuegen-modal.webp)
_Dialog for adding hard copies after a successful import
Screenshot of the German interface._


For a full guide, see [Managing hard copies](/en/docs/bibliothekswesen/leihexemplare-verwalten).

## Checking and completing the metadata

After a successful import, check the imported metadata of the publication and add to it or correct it where needed.
To make the publication easier to find, make sure the language is right and the matching categories are assigned.
