Mere Humanity: G. K. Chesterton, C. S. Lewis, And J. R. R. Tolkien on the Human Condition by Donald T. Williams
My rating: 4 of 5 stars
This is one of those books I wish I'd read with a group of people - the ideas really need discussion and mulling over to sink in. Williams has distilled the ideas of Chesterton, Lewis and Tolkein on what separates humans from animals (and humans from angels/God), tackling the ideas of postmodernism/secularism and refuting them using examples from the three author's works.
My only quibble (besides the lack of reading companions) is that there was more on Lewis than the other two.