This book “Can You Believe It's True?: Christian Apologetics in a Modern and Postmodern Era” is split into 3 parts (keep in mind it looks like, & reads like a text book). The first deals w/foundations of truth, specifically in light of modern & postmodern thought. After a brief introductory chapter, Feinberg sketches for readers a general introduction to modernity and postmodernity. He then deals w/their respective skepticism, dealing first w/postmodernity. Then he deals w/modern skepticism, as well as issues related to doubt & certainty.
Basically postmoderns are unwilling to engage in truth claims because they are skeptical that there is such a thing as truth or deny that, even if there is such a thing as truth, human beings are able to know it. Postmoderns emphasize that human beings are conditioned by experiences, biases & culture. Such conditioning renders human beings unable to offer more than a perspective on reality. Consequently postmoderns deny that humans can acquire objective truth.
Feinberg's response is to argue that there is an obligation upon human beings of all cultures and backgrounds to be logical & that objectivity is possible.
Overall John Feinberg does a good job, just remember that this is still a text/reference book. It reads like one though I think he does a good job of not getting bogged down. I have always liked his approach & answer in dealing with the “Problem of Evil” and he lays it out well in this book