A steel book is displayed in the central square of Sao Paulo, Brazil, South America. This wonderful book of 1000 pages is made of stainless steel plate. The book records the historical evolution, customs and historical sites of the city, and is specially designed for foreign tourists to visit and read.

Leather book

In the London Library, there are sheepskin books that prevailed more than 2,000 years ago. One of the most valuable books is The End of the World, which is made of 300,000 thin, shiny sheepskins.

Mushu

A scripture printed on a block of wood was found in the base of a right tower in North Korea. Its pages are like a small blackboard with a layer of beeswax on it. Carve the words with a small metal clip with a sharp mouth, and finally bind the "small blackboard" with a rope.

A book that can be warmed.

In the ruins of Nineveh, the ancient city of Iraq, an ancient book more than 8,000 years ago was found. These ancient books are made of clay, each volume is 25 cm ~ 30 cm square. Archaeologists have found that on cold nights, people can heat it and bring it to bed, while reading and keeping warm.

A book decorated with gold and precious stones

In the London Library, there is a book decorated with gold and precious stones. The cover of this book is made of copper, gold and precious stones. The book weighs 100 kilograms, and there are 55 1 gold characters in the book. 1964, a Japanese wanted to buy it at a high price of 4 million francs, but it was rejected.

Hat book

The books read by the people of Gopeize in Peru look like hats. This hat book is made of 10 layers of cloth, and then the pages are glued to each layer of cloth, so a hat is equivalent to a book. This kind of book comes into being because the local people think that the book is a symbol of civilization and supremacy, so they regard the book as a hat to show their respect for knowledge.

A book smaller than the eye of a needle

Using the latest electronic technology, the Japanese printing company published a book called Hua Yu, the weight of which is only 0.0076 g, and the number of pages in the book exceeds 100, which is equivalent to the thickness of ordinary people's nails. In addition, Japan published a book that can pass through the eye of a needle. Of course, these books are unreadable by the naked eye.

Wooden library

There is a "wooden library" in the Museum of Animals and Plants in Kassel, West Germany, with a total of 546 books. These books are neatly arranged on the shelves. At first glance, they look like ordinary encyclopedias, but they are actually made of different shrubs. On the back of the book is the bark, which is nailed with a golden label, and the name of this shrub is marked in Latin and German. These books were written by German artist Schildbach in the18th century.

A bookstore without books.

In the place where Amikazi people live in the northeast of Congo, there is a shop called Palm Bookstore, which has no books. Bookstore owners only hire a few people who are recognized as "talented" locally. People who want to buy books only need to explain what kind of "book" they want, and people who know this kind of book will come and hold your hand and write what you need in your hand with a purple-blue grass juice. Even if you buy this book, the longest "book" can be written from two palms to the front of your arm. This kind of book can be kept for a long time. If you don't need it, go to the bookstore, erase the original book with a fading agent, and then exchange it for a new one.

An audio book

Someone invented a talking book, which is a round device the size of a record, and an audio-visual device was installed at the bottom of the binding line of the book. There is an infrared lamp on this audio-visual equipment. This kind of lamp can emit tiny light, and any reflection can be projected on the photo with a battery.

It is also easy to "read" this kind of book. You just need to move the audio-visual equipment from left to right. Black and white passwords will cross with the movement of audio-visual equipment. At this time, there will be an active beating in the audio-visual device, and a small speaker will make a strange sound. It will tell readers words, sentence patterns and complicated languages through the loudspeaker.

bookmobile

Persian Prime Minister Abreu Kassem Ismail (938 ~ 995) was a famous Persian politician and strategist. His love for books is the best in the world. It is said that his library has reached 1 17000 volumes.

1000 years ago, the number and types of books were very small. At that time, it was not easy to collect nearly120,000 books. It is conceivable that Ismail spent time and money on this.

Because of his duties, Prime Minister Ismail often travels around. Wherever he went, he asked his entourage to arrange his books in alphabetical order, put them on the camel's back and travel with him. This is the so-called mobile library. It is said that 400 camels are needed to carry his mobile library at a time.

During the trip, once the Prime Minister says he wants to read a book, or a book about what he wants to read, the people who take care of these camels can immediately find these books from the camels' backs and give them to the Prime Minister.