Unfortunately, I am so short of time I will not be able to get to this review until next month at the earliest (though I guess anything could happen...).
For those who are interested in Denny Burk's defense of asexuality, it would be worthwhile reading Matthew 19:1-12 (specifically 11-12) and 1 Corinthians 7:25-40 (specifically 36-40 - though the whole chapter contains salient points). Pay attention to what it actually says, and ask whether those passages support asexuality or lack of sexual desire for the opposite sex as a gift from God, or whether that idea needs to be read into the text. Note: celibacy is not the same as asexuality.
Hope to be able to give my take soon.