How to Choose a Topic for Your Book

By Beth Brombosz, PhD

Mar 03

Choosing a topic for your first book or eBook is difficult, especially for bloggers who write about a wider variety of topics. Answer these questions to help you narrow down and choose the topic for your book.

You've written a lot of blog posts on many different topics. How do you choose one to write a book about?


Writing a book that’s more than a handful of pages needs a lot of content. Yes, you can flesh out the blog posts you already have, adding in more examples and going into greater detail. But if you only have two blog posts about a topic, it’s going to be difficult to turn them into a book. To make putting your book together easier, try picking topics that you’ve written a good amount of material on, and ideally focus on topics where you’re seen as an expert.


If you have a topic that you love but don’t have enough material to write a book with those posts right now, consider writing a weekly post that provides a little more information on the topic. That way, you’re slowly writing your book over time, and when you’re ready to put it together, a lot of the work is already done.


CLICK HERE to download your free "How to Choose a Topic" worksheet.


Having a lot of comments on a post suggests that your readers are very interested in and are engaged with the topic. If your readers are consistently asking for more information about the topic you’re blogging about, that’s a great topic to explore for a potential book. Questions asked in the comments can help you find parts of the post that you can flesh out further to increase the length of your book.



If you’ve already been solving problems for your readers, you may be on to something. Successful products, whether it’s a book, a course, or consulting or coaching, all help solve a pain point for the people who buy them. If you’ve been successfully solving common pain points for your readers, that’s a great place to start for your book, too.



It can be smart to tie your book topic into a product that you already sell. Do you sell coaching services? Writing a book on the topic will help give you more authority, and can be a great low-price lead in to some of your more expensive products and services.


Consider creating an avatar of a beginner in your field and write a book telling them how to get started. Take time to write down a description of someone who would be your ideal reader, including gender, age, location, and, most importantly, what problems he or she has that  your book will solve. Then, use the book to help solve each of those pain points that your reader would experience as he or she gets started in your area of expertise.



If your goal is to make money selling your book, choose your topic carefully. You may consider choosing more than one topic, then testing them out to see if  your readers would actually buy a book about each topic. Put your effort into the topic that more people would buy, even if it’s not the most popular topic.

Great ideas! I’m a newbie blogger (about 7 months in). I post solely about DIY home decor and crafty ideas. I have an idea for an e-book based off a material I’ve used in a couple of project posts. However, being small, can I still launch a tutorial-like ebook selling for under $5? Visiting from Saturday Sharefest.

    Beth July 4, 2016

    Hi Victoria! Absolutely! If you don’t have a big following on your blog, I’d suggest also publishing your eBook on Kindle and iBooks, which will get you greater exposure. (Just don’t enroll in the Kindle KDP Select program, which will get you higher royalties, but you won’t be able to sell your book elsewhere for 90 days.) Feel free to email me if you have any more questions!

Teresa July 2, 2016

This is a great way for me to continue to work on a book without losing time to blog!

    Beth July 4, 2016

    Yes, exactly! I looked at writing my book the same way–I could continue to create great content for my blog and my book at the same time. Happy writing! 🙂

These are very helpful tips. One day I hope to write a book and your tips will come in handy when I’m working on the topic. Thanks very much! Found your post at the Saturday Sharefest

    Beth July 4, 2016

    So glad you found this helpful, Nicole! And good luck to you as you begin to write your book. If you have any questions as you start to write, don’t hesitate to contact me! 🙂

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