(1) Classification of copyright registration Depending on whether registration is voluntary, copyright registration can be divided into compulsory registration and voluntary registration. Where the law requires the parties to register in order to obtain the right to register, it is compulsory registration. In countries that adopt the registration doctrine, the creation of copyright is subject to compulsory registration; at the same time, in countries that adopt the automatic protection doctrine, sometimes the law also requires registration when the copyright is pledged. If the law does not require [1] registration to obtain rights, and the registration voluntarily requested by the parties concerned is voluntary registration. For example, some countries that adopt automatic protectionism stipulate that copyright owners can voluntarily register copyrights. Depending on the nature of the registered rights, copyright registration can also be divided into registration, registration of changes in rights (including registration of setting up other rights) and cancellation registration. Registration is mainly applicable to the acquisition of copyright. Registration of changes in rights occurs after the copyright is formed, and deregistration occurs when the copyright or a certain right in the copyright disappears. (2) Materials required for copyright registration of general works 1. Application form. The content includes: the title of the work, the category of the work, the signature, the date of completion, whether it was published, the date and place of first release; the form in which the work was completed (single, collaborative, commissioned, job title, other); the author's status, and other copyright holders' status. [2] 2. Proof of identity of the applicant (individual applicants shall provide a copy of their ID card, unit applicants shall provide a copy of their business license, and creative personnel shall provide a copy of their ID card). 3. Provide work samples (for text works, provide creative drafts; for art and photography works, provide 2 locm×12cm photos; for engineering product design drawings, provide three views, renderings or physical photos; for film and television works, provide VCD, etc.). 4. Creative description of the work. 5. Depending on the actual situation, choose to submit a cooperative work with a letter of authorization from the co-author, a commissioned work with a commission contract or an exclusive rights license contract. (3) Copyright voluntary registration system Copyright is subject to voluntary registration. Regardless of whether the work is registered or not, the copyright obtained by the author or other copyright holders in accordance with the law will not be affected. The purpose of my country's voluntary registration system for works is to protect the legitimate rights and interests of authors or other copyright owners and users of works, to help resolve copyright disputes caused by copyright ownership, and to provide preliminary evidence for the resolution of copyright disputes.