Publishing a Kindle eBook can be a great way to generate passive income. Here are the basic steps to publishing a Kindle eBook:

1. Choose a topic: Select a topic for your eBook that you are knowledgeable and passionate about. Consider what topics are popular in the marketplace and what type of audience you want to target.

2. Write your eBook: Write your eBook using a word processing software such as Microsoft Word. Pay attention to formatting and ensure your content is easy to read and engaging.

3. Create a cover: Create an eye-catching cover for your eBook that will attract potential readers. You can hire a professional designer or use a do-it-yourself design tool. 

4. Format your eBook: Format your eBook for Kindle using Amazon's Kindle Direct Publishing (KDP) tools. You can use KDP to convert your manuscript into a Kindle-ready format, add a cover, and set your pricing.

5. Set your pricing: Choose the price for your eBook based on market research and your own financial goals. Amazon offers a royalty rate of 70% for eBooks priced between $2.99 and $9.99.

6. Publish your eBook: Once you've completed the steps above, publish your eBook on Amazon's Kindle store. Your eBook will be available for purchase and you can start earning royalties on sales.

It's important to note that the success of your eBook will depend on factors such as the quality of your writing, your marketing efforts, and the demand for your topic. With effort and dedication, however, publishing a Kindle eBook can be a great way to generate passive income.