In general, so many kinds of books in the library are arranged according to classification. For example, if an academic engineering book needs to be sorted out, they will put all these engineering books into a bookshelf for people to choose, which will make it much more convenient for people to choose. But when a certain kind of books are arranged, they are probably arranged according to the level of books, such as junior engineers, intermediate engineers and senior engineers. These three different categories need to be arranged in different ways. Generally, junior engineers are in front, and then intermediate engineers and senior engineers are behind. In addition, special kinds of books can be arranged in the following ways:

1, from low to high

First of all, no matter what kind of books are arranged in a category from low to high, because from our professional category, the low-end people are the majority and the high-end people are the minority, so when choosing books, more people may choose the low-level arrangement first, and those high-level people with special needs will spontaneously go to higher places to find books.

2, from shallow to deep

In addition, the arrangement of academic books is from shallow to deep, such as how to write some papers, or how to start learning a certain computer programming method. Many books of this type are simple in front, but if you want to continue your study in the future, you need to find them after more in-depth book sorting.

According to this letter,

Therefore, for some books that do not involve any academic category or books with no high or low grades, the library may sort them alphabetically, such as abcd all the way to Z, and the first letter of the first word of the title is the basis and way of arranging books. As long as you understand this arrangement, it's easy to find books.