In a book, I quoted other people's words and poems. Is it considered an copyright violation?

Whether or not a book that quoted someone else's words and poems was considered an copyright violation required a detailed analysis of the situation. Generally speaking, if the content quoted was originally created by the other party and did not have the explicit permission of the other party, it might constitute an copyright violation. Quoting other people's original words and poems, such as directly copying and paste, or mistaking other people's text as your own creation, may constitute copyright violation without the permission of the copyright owner. Quoting other people's original paintings, music, movies, and other works also needed to be judged whether it constituted an copyright violation. If you use someone else's work by copying, adapting, or deducing it, you need to determine whether it violates the copyright of the work. In order to avoid any copyright violation, it is recommended that you first confirm whether you have obtained the permission of the copyright owner and strictly abide by the relevant laws and regulations when using other people's works. At the same time, they could also refer to some copyright protection laws and regulations to better protect their rights and interests.