Add the respective book to your reading list on Talis Aspire and either mark it as 'Essential' or add a Note for Library indicating that online access is required then request a review of the list (from the 'Edit' button at the top). Somebody will alert you - usually within a day or two - if online access cannot be secured. If online access
is secured, a 'View online' button will be added to your reading list in due course.
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Where there are no suitable online options available, discuss potential solutions with your
Faculty Librarian, whose contact details can be found in your department's
Subject Guide.