User talk:Rahmat zia

Hello, I see you have started to create the book "An introduction materials science and engineering", and in the content you say it is William D Callister, Jr. This is a work that appears to still be in copyright, so unless you have permission from the copyright holder you can't create it on Wikibooks. If you do create it without permission, it'll be deleted as a copyright violation. There is already a book on Materials Science here if you'd lie to contribute to that. Thanks. QU TalkQu 09:45, 29 December 2009 (UTC)