Detailed explanation and sharing of how to choose book covers for elementary school textbooks

The destructive power of children cannot be ignored. It has only been a week since school started, and the textbook covers of several of Little Rich’s classmates have already been lost. It is better to wrap the school textbooks in a book cover to have a better chance of lasting through the semester. Let Rich share how to choose the right one. size bookcase.

There are a dazzling array of textbook covers in stationery stores. I’m so confused after looking at them, which one should I buy? What a knowledge.

The Mandarin textbook pictured below is an example. The book length is 26 cm, the book width is 21 cm, and the thickness is 0.5 cm. What size book cover should I buy that is just right?

In fact, the rich man didn't know it at first, so he just bought a pack of "widened" book covers and went home to study them slowly. There are so many book cover specifications that you really don’t know where to start?

After some research, I found that in addition to different sizes of book covers, the same size is also divided into "normal type" and "widened type".

Normal type vs widened type

The difference between the "normal type" and the "extended type" book covers is that they can be coveredThe total width is different, take the picture below as an example. The normal book cover is only 41 cm, while the widened book cover is 45 cm, which is 4 cm longer.

In fact, there are only two key points in choosing a book cover: Find the longest width that can be covered by the book cover (yellow number 1 in the picture below) and the length that can be covered (yellow number 2 in the picture below).

Spread out a widened book cover. In the picture below, from the far left to the first yellow line, it is 45 centimeters, which is the same as the mark on the book cover package.Available rangeThe same means that you can wrap textbooks whose total width (front book width + book back + back book width) is less than 45 cm. The second yellow line is 48 centimeters and is used for folding and gluing it back, so it is considered a 2-3 centimeter buffer.

Combining the above measured figures

• Textbook length (26 cm)less thanThe length that the book cover can cover (26.3 cm)
• Total textbook width (42.5 cm = 21 + 0.5 + 21)less thanbook coverAvailable range/width(45 cm)

So the book cover I chose this time is correct and the mission was successful! The textbooks have become shiny and can be purchased directly online from now on (laughs). I wish all parents to choose the right size book cover.

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