How to Market Your Book on a Budget: 8 Strategies That Actually Help You Reach Readers

Most book-marketing advice sounds good until you actually try it.

“Build an author brand.”

“Post consistently.”

“Get reviews.”

“Grow an email list.”

None of that is necessarily wrong. The problem is that it often skips the hardest question:

How do you actually get your book in front of people who might buy it when you do not already have a huge audience or thousands of dollars to spend?

For indie authors, that is the real challenge.

The good news is that there are still inexpensive ways to test ideas, reach new readers, and learn what actually converts. The key is to stop treating marketing as one giant launch and start treating it like a series of small experiments.

Here are eight book-marketing strategies that are more practical than the usual advice.

1. Use Instagram Trial Reels to Reach People Who Do Not Follow You

This is one of the most useful Instagram features for authors right now, and many writers still are not using it.

Trial Reels allow you to show a Reel to non-followers first instead of immediately pushing it to your existing audience. That makes them especially valuable for testing book content, because you can find out whether an idea attracts strangers before using it as a regular post.

Meta says Trial Reels are designed specifically to test content with non-followers. After trying the feature, 40% of creators in Meta’s internal analysis began posting Reels more frequently, and among those creators, 80% saw an increase in reach from non-followers. Results are not guaranteed, but that makes Trial Reels worth testing if your goal is discovery rather than simply entertaining the people who already follow you.

Do not make every Trial Reel a direct advertisement.

Instead, test hooks such as:

“If you could enter one magical world for a week, which would you choose?”

“POV: you discover the forest behind your house is hiding another realm.”

“Books to read if you miss the feeling of discovering Harry Potter for the first time.”

Then quietly connect the content to your own book.

The Reel earns the attention first. The book comes second.

2. Target Specific Books With Amazon Ads, Not Huge Keywords

A common beginner mistake with Amazon Ads is targeting broad phrases such as “fantasy books,” “romance novels,” or “children’s fantasy.”

Those terms can be competitive, expensive, and vague.

A more interesting tactic is product targeting.

Amazon allows authors to show Sponsored Product ads on specific book pages or around closely related books. That means instead of competing for an enormous keyword, you can target books that attract the exact type of reader who might like yours.

For example, imagine you wrote a middle-grade magical adventure. Instead of only bidding on “fantasy book for kids,” you could build campaigns around specific comparable titles.

The important part is relevance.

Do not simply target the biggest book in your genre because it has millions of readers. Look for books with similar age groups, tone, themes, covers, and reader expectations.

Start with a tiny daily budget.

Amazon’s ads are pay-per-click, so you are charged when someone clicks rather than simply when the ad appears. Amazon also allows negative targeting, which can help stop your ads from appearing for searches that do not fit your book.

The goal is not to “run ads.”

The goal is to discover which books and search terms actually send interested readers to your page.

3. Use $5–$10 BookBub Ad Tests Instead of Betting on One Big Campaign

Many authors know about BookBub Featured Deals.

Fewer experiment seriously with BookBub Ads.

BookBub Ads allow you to target readers based on authors they follow or books they have shown interest in. That is useful because the audience is already centered around books.

BookBub currently recommends starting small when testing campaigns, with budgets as low as $5–$10, then increasing the spend only if the ad performs.

There is another important detail that is easy to miss:

The biggest authors are not always the best targets.

BookBub’s own 2026 advertising guidance recommends experimenting with smaller, highly engaged author audiences rather than automatically targeting the biggest names in your genre.

That can help a limited budget stretch further.

Test one author target at a time.

Test one image.

Test one message.

Then compare the click-through rate and cost.

A $7 failed test is useful information.

A $200 campaign built on a bad assumption is just expensive.

4. Turn One Good Video Into Five Different Hooks

Authors often think they need to constantly create new content.

You usually do not.

You need to find a piece of content people respond to and then test different ways of presenting it.

Suppose you record a beautiful 12-second video of your fantasy book beside a candle, forest, castle, or autumn window.

Do not post it once and forget it.

Try different opening text:

“If you miss getting lost in magical books…”

“For readers who wish fairy tales were real…”

“Would you enter a magical realm if you knew you might not get home?”

“Books for people who never stopped believing in magic.”

“POV: you find out magic was real all along.”

The footage barely changes.

The hook changes completely.

That matters because people often decide whether to continue watching in the first moments.

Think of your content as testing packaging around the same story.

When one hook performs noticeably better, you have learned something important about what attracts your audience.

5. Promote the Post That Already Worked

If you have $20 to spend, do not immediately create an advertisement from scratch.

Look at your existing content first.

Which Reel got unusually strong watch time?

Which post was shared?

Which question attracted comments from people who were not already your friends?

Which video brought new followers?

That is evidence.

If you decide to spend money promoting content, start with something that has already demonstrated that people care about it organically.

The mistake many authors make is advertising the post they most want people to see.

Market the post readers have already shown they want to see.

Those are not always the same thing.

6. Use Other Authors’ “Also Bought” Audiences as Market Research

Amazon can quietly tell you a lot about your readers.

Find books that are genuinely similar to yours and study the books Amazon associates with them.

You are not looking to copy anyone.

You are looking for patterns.

What covers repeatedly appear?

What words appear in titles and subtitles?

Which age ranges dominate?

Are the books humorous, dark, cozy, romantic, adventurous, or mysterious?

Which lesser-known authors keep appearing beside the larger ones?

Those smaller comparable authors may be especially useful for Amazon product targeting, BookBub targeting, social-media research, and future collaborations.

This is essentially free audience research.

Instead of asking, “Who is my target reader?” in the abstract, you are studying what that reader is already buying.

7. Borrow Audiences Instead of Trying to Build Everything Yourself

Growing from zero is painfully slow.

One of the cheapest ways around that is to appear in places where readers already gather.

That does not mean sending random authors messages asking them to promote you.

Think smaller and more useful.

Find:

Book bloggers with modest but engaged audiences.

Fantasy Instagram accounts.

Genre newsletters.

BookTok creators who regularly feature indie books.

Podcasts that interview authors.

Local libraries.

Book clubs.

Teachers or homeschool communities if your book fits their readers.

Smaller creators can sometimes be more valuable than enormous accounts because their communities are tighter and they receive fewer pitches.

And your approach matters.

Do not say:

“Will you promote my book?”

Give them something that makes their job easier.

Offer a physical copy.

Provide beautiful photos.

Give them an interesting angle.

Explain in one sentence why their particular audience might enjoy the book.

You are not asking for charity.

You are showing them a potentially useful piece of content for their own audience.

8. Track Sales by Experiment, Not Just by Month

This may be the most important strategy in the entire article.

Most authors market chaotically.

They post on TikTok.

Run an Amazon ad.

Do an Instagram giveaway.

Buy a newsletter placement.

Post on X.

Then two weeks later they look at sales and have absolutely no idea what worked.

Instead, isolate your experiments whenever possible.

Run a specific Amazon campaign.

Record what happened.

Test three Trial Reels.

Record which one reached the most non-followers.

Spend $10 testing a BookBub audience.

Record the clicks.

Try one creator collaboration.

Watch whether sales or page reads move afterward.

BookBub itself recommends tracking sales alongside ad activity even when perfect attribution is not available. Amazon also provides campaign reporting that can show which targets and search terms produced clicks and sales.

You are building your own marketing database.

After six months, that becomes incredibly valuable.

You may discover that Instagram gets attention but Amazon Ads create sales.

Or perhaps one particular BookBub audience converts unusually well.

Maybe videos featuring your book barely work, but videos about the feeling or world behind your book take off.

That information is far more useful than another generic list of “50 ways to market your book.”

The $50 Book-Marketing Experiment

If I had only $50 to market a book, I would not spend it all at once.

I would use free organic content to identify what readers respond to first.

Then I might divide the money into several tiny experiments:

$10 testing BookBub audiences.

$10–$15 testing Amazon product targets.

$10 promoting or repurposing proven social content.

The remaining money would stay untouched until one of those experiments showed signs of working.

That last part matters.

You do not have to spend your marketing budget simply because you have one.

The best time to spend more money is after you discover something that works.

Final Thoughts

Marketing a book on a small budget is not really about finding one secret platform.

It is about reducing waste.

Use Instagram Trial Reels to test whether strangers care about an idea.

Use Amazon product targeting to get close to readers already looking at comparable books.

Use tiny BookBub campaigns to identify responsive audiences before spending more.

Reuse strong content with different hooks.

Study what readers already buy.

Borrow existing audiences instead of trying to manufacture one from nothing.

And above all, keep track of what actually produces results.

A small author cannot always outspend a large publisher.

But a small author can test faster.

And when every dollar matters, knowing what not to spend money on can be just as valuable as knowing what works.