There are lots of possible answers to this question. My favorite: the Old Testament is the story of our search for God; the New Testament is the story of God's search for us.
Yes. The holy book of Christianity is the Bible.
The Holy Bible.
The holy book for Christianity is called The Bible.
The Holy Bible including both the Old and New Testaments is the book for Christianity.
The Christian holy book is called "The Bible"
The Bible is the holy book for Christianity and it's many denominations.
The Holy Bible.
the bible
Christianity
The Holy Bible.
Christianity
Judaism: Tanakh (Hebrew Bible) Christianity: Bible Islam: Holy Quran