I don't like criticizing enyone else's work and I do not know Dave Whitney, but imho you'd better spend the $12 on some pipecleaners. I purchased the book about 4 or 5 years ago when I was refurbishing a lot of pipes and I didn't really find it interesting. All the info in the book can be found on online forums, I can't recall really learning anything from it.
I can see this book being good for someone completely new to pipe restoration, but if you have any experience you will browse through it in 15 minutes and never reach for it again. Your mileage may vary, this is just my personal opinion
