There is no definitive answer to this question as it largely depends on the content of your ebook and your target audience. However, some general tips for ebook marketing keywords include:
-Think about what terms your target audience is likely to search for when looking for an ebook on your topic.
-Include keyword(s) in your ebook title and/or subtitle.
-Use keyword(s) throughout your ebook content, including in the headings and subheadings.
-Make sure your ebook is properly tagged with keywords on your website or blog.
-Include keyword(s) in your ebook marketing materials, such as the description or synopsis.
-Consider using pay-per-click (PPC) advertising to target specific ebook keywords.