Writing Books That Sell
Writing Books That Sell
Writing books that sell begins long before you write your first word. It starts with research, planning and understanding your market.
You may have a wonderful book idea, but how can you shape it into something readers want to buy? A little groundwork can help you give your book a clear purpose and a stronger place in the market.
Your subject matter
Begin by doing some research on Amazon. Look at books similar to yours. Examine their titles, subtitles, covers, descriptions, categories and prices.
What catches your attention? How do authors explain the benefits of their books? This research helps you understand what readers already have to choose from.
Profitable niche
Start by finding a profitable niche. Many new authors dive straight into writing without considering who will actually buy their book. By identifying a niche early, you set yourself up for stronger sales, clearer marketing, and a book that truly connects with readers. Here are several effective ways to discover a profitable niche.
Research categories
Amazon is the largest bookstore in the world, and it gives you a free window into what readers are already buying.
Explore categories and then drill down into subcategories. Look for areas where books consistently rank well in Best Sellers Rank (BSR), but where competition is not overwhelming. If your topic is broad or highly competitive, consider narrowing your focus. For example, instead of writing broadly about “Flowers,” you might focus on “Flower arranging for beginners.”
A clearly defined niche helps you focus your content and explain who your book is for. You do not need to appeal to everyone. You need to connect with readers who will find your book useful.
Research keywords
Keywords are the search terms readers type into Amazon when looking for books. Tools like Publisher Rocket, Google Keyword Planner, or even the Amazon autosuggestions feature can help you see what people are searching for. A niche with high search volume and relatively few books is a strong opportunity.
Research reviews
Study other books in your niche without copying their content or approach. Customer reviews can be particularly helpful.
What did readers appreciate? What disappointed them? Did they want clearer instructions, more examples or greater depth?
These comments may reveal an opportunity for you to offer a fresh perspective or a more practical resource.
Gaps in the literature can highlight opportunities. For example, if readers keep saying a book is too advanced, perhaps a beginner-friendly version is needed.
Test your idea on social media
Join Facebook groups, Reddit forums, or online communities around your potential topic. Pay attention to the questions people ask repeatedly. If a group is actively discussing a subject, chances are there is already an audience for a book that addresses those needs.
Your title and subtitle
Once you understand your audience, create several working titles and subtitles.
Your title should attract attention, while your subtitle explains the subject, intended reader or benefit. Include relevant keywords where they fit naturally, keeping the wording clear and appealing.
Profit and sustainability
While profit matters, sustainability comes from writing about something you care about. A profitable niche is best when it balances strong reader demand with your personal expertise or interest. This makes writing, marketing, and engaging with readers far more natural.
By combining research into Amazon categories, keywords, reader demand, and community insights, you can validate your book idea before you even start writing. This preparation ensures that your book isn’t just written. You write your book for an audience eager to buy it.
Research, particularly if you use Publisher Rocket, cannot guarantee sales, but it can help you make better decisions before you invest months into writing. Give your book a strong beginning by knowing who it serves and why they would want to read it.
Marji Hill
Author and Coach