In ancient times, how did children who were sewn dog skins into dog people by human traffickers live

The management of library materials can be roughly divided into four points: one is the collection of library materials, that is, the management personnel collect relevant library materials according to the needs and preferences of the user group; The second is the induction of library materials, that is, different library materials belong to different categories, so managers need to classify and summarize these library materials to ensure that users can accurately find the materials they want to read; The third is the maintenance of library materials, that is, the physical library materials have a service life limit, and they are easy to be damaged by long-term reading, so the management personnel should do a good job in the maintenance of library materials, avoid damage to library materials as much as possible, and replace them as soon as possible if they are found to be damaged; The fourth is the registration and management of library materials, that is, the management personnel need to register all the collections in the book, so as to provide guidance services to users and avoid the loss of library materials. According to the four key points of the work, the library generally relies on the manual mode related work, that is, all the key points of the work are basically responsible for the manual, and the specific methods are roughly as follows:

Understand the needs of user groups through observation, inquiry, etc., clarify the direction of data collection, and then classify library materials according to their disciplines, majors, age-appropriateness and other characteristics, and then carry out targeted library material maintenance and grade management. The management of library materials can be roughly divided into four points: one is the collection of library materials, that is, the management personnel collect relevant library materials according to the needs and preferences of the user group; The second is the induction of library materials, that is, different library materials belong to different categories, so managers need to classify and summarize these library materials to ensure that users can accurately find the materials they want to read; The third is the maintenance of library materials, that is, the physical library materials have a service life limit, and they are easy to be damaged by long-term reading, so the management personnel should do a good job in the maintenance of library materials, avoid damage to library materials as much as possible, and replace them as soon as possible if they are found to be damaged; The fourth is the registration and management of library materials, that is, the management personnel need to register all the collections in the book, so as to provide guidance services to users and avoid the loss of library materials.

According to the four key points of the work, the library generally relies on the manual mode of related work, that is, all the key points of the work are basically responsible for the manual, and the specific methods are roughly as follows: through observation, inquiry, etc., to understand the needs of the user group, clarify the direction of data collection, and then classify according to the discipline, major, age-appropriate and other characteristics of the library materials, and then carry out the maintenance and grade management of the library materials in a targeted manner.

Is there really such a thing, the first time I've heard of it, or something that happened in another parallel world? It belongs to the magic world.