The Gospel of John as a Jesus Book

A quote from the soon-coming The New Testament in its World about the Gospel of John and christology:

One cannot ignore the clear christological core of the gospel of John. This is not a book about a generalized spirituality or religious outlook on life. It is about Jesus himself from first to last. The book is written by a disciple whose passion for Jesus is intoxicating. The Jesus of the fourth gospel is to be believed, trusted, obeyed, and worshipped. Why? Because he has the words of eternal life. He laid down his life for his friends. He is the good shepherd, the lamb of God, the true vine. He is the door between our world and the new creation. Jesus is not merely one option on a religious smorgasbord. He is unique, unprecedented, cosmically singular. He is not a way up the mountain; he made the mountain in the first place! He is the way, the truth, and the life. The way for all people, Jews, Samaritans, Greeks, and whosoever will believe in him. John bids us believe the exclusive claims of the all-inclusive saviour.