'Book' in the Bible

Now as for these four young men, God gave them knowledge and made them expert in all book-learning and wisdom: and Daniel was wise in all visions and dreams.

And at that time Michael will take up his place, the great angel, who is the supporter of the children of your people: and there will be a time of trouble, such as there never was from the time there was a nation even till that same time: and at that time your people will be kept safe, everyone who is recorded in the book.

But as for you, O Daniel, let the words be kept secret and the book rolled up and kept shut till the time of the end: numbers will be going out of the way and troubles will be increased.