Registration Agency DOI:

Registration Agencies:

Important notice for DOI users

Following a review of the book publishing market with respect to identifiers for products and content, Nielsen Book has decided for the time being not to enrol new customers within its DOI Registration Agency.

If you are looking for an agency that you can register DOIs with now, please visit the International DOI Foundation’s list of registration agencies at:

If you have a question specifically about Nielsen Book’s activities in this area, please contact Julian Sowa on 0870 777 8712 or via



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