The Holy Bible is a canonical collection of texts sacred in Judaism and Christianity. There is no single "Bible" and many Bibles with varying contents exist.
There are a number of different versions of the Christian Bible, with slightly different selections of books, as well as different ordering and naming of books, or incorporation of additional material into the books.
Christian Bibles range from the sixty-six books of the Protestant canon to the eighty-one books of the Ethiopian Orthodox Church canon. The first part of all Christian Bibles is the Old Testament, which contains, at minimum, the twenty-four books of the Hebrew Bible divided into thirty-nine books and ordered differently from the Hebrew Bible. The Catholic Church and Eastern Christian churches also hold certain books and passages that are excluded from the Hebrew Bible to be part of the Old Testament canon.
The second part of the Holy Christian Bible is the New Testament, containing twenty-seven books originally written in Koine Greek, which discuss the teachings and person of Jesus, as well as events in first-century Christianity. The New Testament is divided into the four Canonical gospels, the Acts of the Apostles, twenty-one Epistles or didactic letters, and the Book of Revelation.
Various religious traditions have produced different recensions with different selections of texts. These do largely overlap however, creating an important common core.
With estimated total sales of over 5 billion copies, the Holy Bible is widely considered to be the best selling book of all time, has estimated annual sales of 100 million copies, and has been a major influence on literature and history, especially in the West where it was the first mass-printed book.