I am a self-published writer. Recently, I finished writing my self-help book. After the writing process, book promotion and marketing are also tough. As I lack professional marketing skills, I could not find experienced and reliable publishers. I have explored different websites and found some publishers. But they do not specialize in my genre. If any friends help me find professional book writing services who review my manuscript and provide constructive feedback and recommendations for improvement. They help me connect with literary agents and create effective query letters to find publishers. Does anyone let me know about a competent book-writing service in town?