'Book' in the Bible

When this matter was investigated, and it was found to be so, they were both hanged on a tree; and it was written in the book of the chronicles in the king's presence.

On that night, the king couldn't sleep. He commanded the book of records of the chronicles to be brought, and they were read to the king.

The commandment of Esther confirmed these matters of Purim; and it was written in the book.

All the acts of his power and of his might, and the full account of the greatness of Mordecai, to which the king advanced him, aren't they written in the book of the chronicles of the kings of Media and Persia?