John Beechy wrote: Buy the book, no. Read the book, yes. You would have to read it to answer your questions. It's available free online. If you believe it to be in error then you can post your reasons publicly in various places to help believers understand.
Not free at the link that you posted, but found a free download of it. So will read it and report back.
Saw a chapter entitled "sex is covenant", which is where I would have a fundemental disagreement with the lady!