| title | ISBN-13 (ISBN-10)  | year of publication | 
|---|---|---|
| CONTENT MARKETING MACHINE: The Essential Strategies to Ignite Your Content. Learn the Secret Formula Copywriters Use for Online Digital Marketing, Web Content Creation, Business Email, & SEO | 978-1-7127-7639-1 (1-7127-7639-8)  | 2019 |