John D. Barrow was a professor of mathematical sciences and director of the Millennium Mathematics Project at Cambridge University and a Fellow of the Royal Society.
He was awarded the 2006 Templeton Prize for "Progress Toward Research or Discoveries about Spiritual Realities" for his "writings about the relationship between life and the universe, and the nature of human understanding [which] have created new perspectives on questions of ultimate concern to science and religion".
He was a member of a United Reformed Church, which he described as teaching "a traditional deistic picture of the universe".
Been there, done that. Because the book was published in the later 1990's from previously published work by the author, I found nothing new in what was presented. That being said, I find Barrow to be a good writer. He has he ability to disseminate scientific findings and views based on these. If one is not concerned with cutting edge science and is fairly new to science writing the book is very good. Even if you have more knowledge about science, it is still a nice book to read.