You can start with a very small budget, even as little as one dollar per day, and experiment with different ad texts and keywords. Linking from your landing page to Amazon.com or BN.com via their affiliate programs will allow you to keep track of your average advertising cost per book.

The key to a high conversion rate and maximum ROI is to match ad text, search terms and book content as closely as possible and make the landing page extremely informative.

An example: Let’s say your book is about the body language of dogs. According to Google’s keyword tool, there’s noticeable search volume for keyword phrases such as “dog body language” and “reading dog body language”. However, currently there are no pay-per-click ads for these search phrases. Therefore, if you have written or published a book about the body language of dogs, you can easily reach thousands of potential book buyers through pay-per-click ads and significantly increase sales.

Contact me if you have questions about pay-per-click advertising for books.