The Shack by William Young has been the most popular book in Christian fiction. I haven’t read it and probably will not, but I’ve been asked about it several times over the past month. For those interested you can trust these two reviews:
Al Mohler gives an extended analysis of the book and makes note of its serious, even dangerous, theological deficiencies in this radio program.
This review at Discerning Reader says, in short, that the book is, a theological novel that teaches far too much unbiblical theology.