They have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They've got awards logos on their website from 2020 (the web site didn’t exist right up until 2024). There are actually weak assessments on copyright regarding their editing services. We couldn’t locate the highlighted book on their homepage on https://maplepublishers.com/blog/4-things-to-do-when-you-begin-a-self-publishing-journey/