If you want omnibus coverage of both these major authors/thinkers lives, this isn’t it. Duriez compiled these thoughts from smatterings of lectures he’s delivered to audiences in the UK and US and at times, the book seems more like a collection of notes than a seamless dual biography. On the other hand, it’s a good overview, if somewhat critical of Lewis. The beginnings of chapters that offer little vignettes of significant moments in their lives or their friendship are especially compelling. But overall, this isn’t the best biography of either of the men and leaves out much of the richness that could be included given Duriez’s years of study into their careers.