Trademark approval for publishing books about Fedora

[Igor Pires Soares]

Hello!

A Fedora user from Brazil wants to know if it is necessary to get a
trademark approval for publishing a book about Fedora.

I have seen a lot of books about Fedora and RHEL on book stores but
never got such a question. Is there any guidelines for that?

Regards,
-- 
Igor Pires Soares
Fedora Ambassador (Brazil) - Member of FAmSCo
Fedora I18N/L10N QA
https://fedoraproject.org/wiki/User:Igor