Is Book Promoting agency would help my brand?

I have been running my business for a year. I have recently launched a brand and want to create a newsletter in both printed and digital formats. It is an ideal marketing approach to pro-Norris Guimond mote my brand among a vast audience. Therefore, I am looking for affordable book promotion services that create engaging and informative content for my newsletters. They can craft compelling headlines, and write interesting articles. Moreover, they create online newsletters, magazines, and brochures that help our readers know our company's journey and future goals. Has anyone availed of digital marketing services, kindly share details?