As per US copyright laws, Jean's copyright ends in 1988 . Until then, if other people use parts of Jean's book in their work, then they need to obtain permission from .

Jean

Explanation:

Copyright is a legal intellectual property right, exclusively assigned to originator of a creative work - for its publish, performance, recording etc, for a fixed period of time. The creative work can be used by any other person or party, by permission of copyright owner only.

So : As per US copyright laws, Jean's copyright ends in 1988 .Until then, if other people use parts of Jean's book in their work, then they need to obtain permission from Jean

answer unified communications;