Exactly. The book can't trademark the name in general use, but it's still crappy hygiene to reuse the exact name. This has to be taken as deliberately drafting the wake of the book, which I cannot respect. Nor can the authors feign ignorance. They decided to do this.

Think the author should pick new title. This is plain confusing.

I also thought it was about the book and almost skipped this until reading your comment.