Below is a blurb from a contract to be signed Its for a printed publication. This is different than others I have seen.
Advice appreciated
Author agrees and acknowledges not to sell or publish Submitted Content, or
versions thereof, prior to the publication by (publishing company). In
addition, Author grants (publishing company), sole and exclusive worldwide rights of the Submitted Content, or
versions thereof, for all publication media, including electronic and social media, for a period of ninety (90)
days after publication. Thereafter, Author grants (publishing company), non-exclusive worldwide rights of the
Submitted Content for all publication media, including electronic and social media. Author shall not make
any use or reproduction of the Submitted Content or authorize others to use or reproduce the Submitted
Content except as expressly permitted by (publishing company) in writing, for a period of ninety (90) days after publication.
Author shall perform, at the expense of (publishing company), all acts deemed necessary or desirable by (publishing company) to obtain
and/or maintain the full benefits, enjoyment, rights and title throughout the world of all intellectual property
rights assigned by Author to (publishing company) under this Agreement for period of ninety (90) days after publication and
hereby irrevocably appoints any officer of (publishing company) as Author’s agent and attorney-in-fact to perform all such
acts if Author refuses to perform those acts, or is unavailable within the meaning of applicable laws.

