They may have a “U.S. addresses” but Facebook claims they’re in Pakistan. They've awards logos on their own website from 2020 (the web site didn’t exist until eventually 2024). There are bad opinions on copyright regarding their modifying services. We couldn’t discover the showcased book on their homepage on Amazon. https://maplepublishers.com/blog/4-ideas-to-find-the-best-self-publishing-agencies/