Tips for more effective title searches in PLSclear

Try searching by ISBN or ISSN

An ISBN or ISSN number is a unique identifier given to each publication making it an effective way to search for a specific title or edition.

Looking for a journal or magazine article?

Search for the title or ISSN of the journal in which the article is published.

Looking for a poem?

Search for the name of the book that the poem is published in. We will ask you to provide the title of the poem later.

Looking for online content?

Search for the top level URL of the publication rather than the page the article is located on. For example, search for rather than

Titles with no ISBN or ISSN

Unfortunately, if the title does not have an ISBN or ISSN, it will not appear in PLSclear. You will need to contact the publisher directly to seek permission for this title.

I still can’t find what I’m looking for – can you help?

Yes – if you have any questions, please contact our helpdesk at or 020 7079 5940 and one of our team will be on hand to guide you accordingly. The service is available Monday to Friday, 9am-5pm (GMT). For email enquiries please allow up to two working days for a response.