There is a long review of God: All That Matters and The Big Questions: God in today's Tablet. It's online here. A taster:

Sometimes Vernon’s arguments can feel a bit brisk, and it is natural that in such concise but also wide-ranging treatments the author cannot do everything. These two books are, however, very accessible and readable (the tone is conversational), and Vernon has an admirable flair for illustrating his points through references to contemporary popular culture: he can see a popular British TV series as evidence of the God-shaped hole, trace an implicit spirituality in Philip Pullman’s New Statesman articles, and make astute philosophical points about, for instance, the use of the word “spiritual” in the Body Shop’s Body Care Manual. Vernon’s books do as they say – they take religious traditions and practice seriously, confront the central issues that ­matter most to humans, and nurture searchers, enquirers and the curious in their questioning and contemplation.