This book by Christian and biographical historian Paul Johnson is an interesting little creature. I've just speed-read it because I'm giving it to my mum for her birthday and I wanted to check it was the kind of thing she'd find interesting and edifying.
Honestly I'm not really sure who this book is for. Pretty much all of the biographical details are lifted directly from the Gospels,* which is fine and all considering it was written by a Christian, but it makes the book of little apologetic value for non-believer readers who may well doubt the veracity of the New Testament texts at face value; and for Christian readers adds nothing that was not already present in those same texts except maybe a sprinkling of vaguely-insightful commentary here and there. There are several fairly helpful passages explicating historical bits of contextual culture or politics or norms, but none of these are things the average Christian reader couldn't find in a halfway-decent study Bible, and none of it really goes far enough to be again of much apologetic value to non-Christian readers.
All that said, it is nice to have the life of the Messiah straightened out without having to dive chapter-and-verse between four different books trying to assemble a chronology; instead Jesus's life story is organised more by thematic blocks; early life, miracles, teaching, conflict with religious leaders, crucifixion, and afterwards. I don't know who I'd recommend this book to honestly, which is a shame because Paul Johnson's biography of Socrates was incredibly illuminating. Sorry mum, I hope you like it anyway.
* He does make good mention of the fact that Jesus is included in the official non-Christian histories by both Tacitus and Josephus, but doesn't dig into this a whole lot and it's more just an off-the-cuff reference.