Self-publishing a book can be a viable and attractive option for many authors for various reasons.

Here are some of the key reasons why someone might choose to self-publish a book:

Creative Control: Self-publishing gives authors full control over the content, cover design, formatting, pricing, and marketing of their book. You can make all the decisions about how your book looks and feels.

Faster Publishing: Traditional publishing can take a long time, often several years, from submitting a manuscript to seeing the book in print. Self-publishing allows for a quicker turnaround, enabling authors to get their work out to readers more rapidly.

Higher Royalties: In traditional publishing, authors typically receive a lower percentage of royalties, often around 10-15% of the book's net sales. With self-publishing, authors can earn a higher percentage of the royalties, often 70% or more, depending on the platform.

Greater Earning Potential: If your book becomes successful, you can potentially earn more money self-publishing, especially if you can effectively market and sell your work.

No Rejection Letters: Traditional publishers can be highly selective, leading to rejection for many aspiring authors. Self-publishing allows authors to publish their work without the need to impress literary agents or publishers.

Niche or Specialized Content: If your book targets a niche or specialized audience, traditional publishers may not be interested. Self-publishing enables you to reach your specific target market.

Out-of-Print Books: Self-publishing is a great way to bring back out-of-print books or update and re-release older titles.

Experimentation: Authors can experiment with different genres, writing styles, or book formats without the constraints of traditional publishing norms.

Global Reach: Self-publishing platforms, especially digital ones, provide access to a global audience, allowing your book to reach readers worldwide.

Longevity: Self-published books can remain available indefinitely, ensuring that readers can discover and purchase your work for years to come.

Building an Author Platform: Self-publishing can help authors build their brand and author platform, which can be valuable if you plan to write and publish more books in the future.

Promote your business: Writing a book is often a great way to increase your credibility and grow your business.

It's important to note that self-publishing also comes with its challenges, such as the need to handle all aspects of the publishing process, including editing, cover design, and marketing, on your own or with hired professionals. Success in self-publishing often requires a significant amount of effort, dedication, and business acumen. Additionally, self-published books may not have the same level of distribution and visibility as traditionally published books, so effective marketing and promotion are crucial for success.

Ultimately, the decision to self-publish a book depends on your goals, your willingness to take on the responsibilities of publishing, and your desire for creative control over your work.