The Book of the Prophet Isaiah, or Book of Isaiah, is the first book of the Major Prophets in English Bibles.  The Book of the Prophet Isaiah identifies itself as the words of the 8th-century BC prophet Isaiah ben Amoz but later chapters could have been written by another historian (ancients did not regard it as inappropriate to supplement existing work while remaining anonymous).  The book, often called The Fifth Gospel, provides a comprehensive prophetic picture of Jesus Christ including the scope of his life, virgin birth, and sacrificial death.