Social Media | Instagram Intermediate

Instagram for Authors in 2026: What the Data Actually Says About Reaching Readers

Josefine

May 18, 2026

HubSpot just dropped their 2026 Instagram engagement report. It's aimed at B2B (marketing to businesses) and B2C (marketing to consumers) brands, not authors, but the platform mechanics don't care what industry you're in. If you're an author trying to get your books in front of readers, this data applies to you too.

I went through the numbers, cross-referenced with Buffer and a few other sources, and pulled out what's actually useful. Here's what the data says, and what it means for you specifically.

A few numbers to start

Reels rank #1 for reach, likes, and shares (more on this below)
56% of marketers are posting daily
For B2C brands, the best time to post is weekday mornings. Tuesdays between 9am–12pm keeps coming up (I'll share my own account data on this further down)
Once you hit 1,000 followers, the strategy has to adjust. Start focusing more on engagement tactics, for example getting your audience to like, comment, and share. Think about it as a two-way conversation.

Instagram metrics worth tracking

The most important metrics to track for Instagram are watch time, like rate, and share rate -> aka, everything that shows how engaged your followers are with your account and your content. But overall, Instagram uses multiple different factors to decide what to show to whom:

User engagement: likes, shares, saves, and comments
Content performance: how many people like a post and how quickly
Account performance: how many people have interacted with the account
Relationship performance: how accounts interact with each other, not just one-sided engagement (meaning, how much you engage with others as well)

When to post: finding your own best time

Instagram actually tells you this. Go to Dashboard > Insights > Account > Most active times on desktop. You get hourly and daily breakdowns for your specific audience (which will always be more useful than a universal average.

For my own account, 9am–12pm held up every day of the week, not just Tuesdays.

Instagram Most Active Times

Buffer also put out a "best time to post on Instagram" heatmap and they are aligned on the weekday mornings, specifically, Thursdays at 9am. (btw, I have no idea why their heatmap goes backwards - 10pm to 6am 🤷)

Buffer Instagram Best Time to Post

So, how does the algorithm work on Instagram?

There are 3 important aspects to Instagram: Feed and stories, explore page, and reels.

Feed and stories are designed to help you keep up with accounts you already know (in addition to seeing new accounts with similar content). The more you like a post from a specific account or comment on it, the more other posts from that same account you will see on your feed.

Interaction is the sign for the algorithm to push more of the same. So, if your followers reply regularly on your posts and stories (and you respond in return), the more likely it is that your followers will see your posts again and again and again.

The explore page is about discovering new accounts. The posts shown here are based on what else you tend to look at, save, or interact with, not based on if you follow that account.
Your posts will be shown here if they match a person's interests. To be shown, your existing posts popularity signals have to be strong as well. That includes likes, shares, saves, and comments, and ideally all of those early on after you posted.

Reels are meant for entertainment. And the more you watch a reel, the better. Important here are watch time, rewatches, shares, and audio clicks. If the algorithm sees strong engagement across these four, it will push your reel to new audiences (similar to the explore page). Important to note, reels are the best way of growing your community right now.

Let's talk reels

Reels get 36% more reach than carousels and nearly double the reach of a single image. As mentioned before, interaction is key. Instagram looks for the engagement of users with the reel, their history with the account (you), if it uses a trending audio, watch time, etc.

Here are some additional thoughts on what types of reels perform better:

Keep reels to 90 seconds or less if you want to show up on the explore page. Longer videos still reach existing followers, they just don't grow your audience as well.
Include human speech in the first 3 seconds as it drive better responses (more than music). Additional text-overlay is best left for music videos though. Retention goes up by 9.8% for videos with music but down by 4.5% for videos with speech (suggesting that when a person is speaking, excessive text may distract from the human connection). Keyword being excessive. Some text explaining what the video is about helps with the user experience.
Show your face early. When a person appears in the first 3 seconds, 10-second retention improves by about 10%, and viewers are 4.3% more likely to watch with the sound on (remember, clicking the sound on button counts as engagement). Videos featuring people do see slightly lower replay and engagement rates though.
Short looping reels (up to 7 seconds) increase the replay rate by 18.7% and the engagement rate by 16.1%.
A vertical video format sees 20.9% higher reach.
And reels shared via DM are the most heavily weighted distribution signal, meaning, if your watchers share the video with a friend, it's a huge bump for your content.

There's more than reels

In addition to reels, carousels and original content that uses trending audio are still better than static images.

Carousels—posts where users swipe through multiple images— see the highest engagement of all post types. 12% more than reels (no surprise, given you have to click to the next slide to see the rest of the post). Instagram recently bumped the carousel limit to 20 images, so lots to swipe through ;)

One thing worth knowing about static images and carousels: adding audio means the post will appear under reels. Without audio, image posts only show in the feed.

Also, check out Instagram's ideal image size to avoid cropping of your post.

Instagram’s Ideal Image Size By the way, sharing your own image or reel to your stories doesn't change your overall reach. Instagram knows that this is your on post that you published already, plus, the feed has a higher reach than stories anyway.

What hurts your reach

Post whenever and whatever you can, right? Nope! While consistent posting is rewarded, posting too often can hurt your reach (we're not on Twitter... excuse me, X...).

Beyond frequency, Instagram does not want to recommend posts with:

Low resolution content
Mostly text
Logos or watermarks from other platforms (don't repurpose your TikTok video directly, upload the original file)
Content that goes against Instagram's community guidelines

The more focused and consistent your content is, the better the algorithm can match it to the right reader. Think of Instagram as a matchmaking service. Instagram is trying to match your posts to your readers, so those that love the same genre or niche. That's the easiest, if your posts and reels are all about the same topic.

What this means if you're an author trying to reach readers

Here's where I want to zoom out, because there's an important distinction between growing a following and reaching the right readers.

A lot of this data is about reach and engagement in the abstract. But your goal as an author isn't just gaining more followers. You want to find your next reader who is likely to pick up your book. That changes how you should weigh some of this.

You need different types of content for he different stages a reader is: those that don't know you yet, those that might have seen your content before but haven't bought anything, and your fans who have read your book and now want more. These are also your amplifiers on Instagram.

To attract net-new readers, those that are not familiar with your books yet and where you are trying to reel them in (no pun intended ;) ), they find you when Instagram pushes your content to their explore page. To get here, you need to know who your typical reader is and what other, similar content they consume. That then gives you ideas on what content you should be creating. For example, if I love enemies-to-lovers romance books (and that's what you write), look for other authors that write books with the same or similar tropes and take a look at their profile and take inspiration from them.

Now that someone found you, they want to get to know you and your books. That's where consistent posting comes in. To show up on their feed now, you have to keep posting, and it doesn't really matter if you post reels, carousels, or images (a good mix is ideal). As long as it is authentic and showing them who you are and what they can expect from your books. The key is building a relationship with them.

And lastly, those followers who have read your books and loved them will be the ones helping you be more visible. They want their friends to know about you and by sharing or reposting your content, they are stretching your reach to their followers. So, your content has to give them something that makes them want to do that. And I'm not necessarily talking giveaway posts or free stuff. Posts that show in an easy way what your book is about or a memorable quote can be as effective.

Work with the algorithm data, but make sure that what you actually put out there is in service of building real connection with readers.

Frequently Asked Questions

What is the best time to post on Instagram as an author?

Based on HubSpot's 2026 data and Buffer's analysis, weekday mornings between 9am–12pm consistently show the highest engagement, Tuesdays and Thursdays perform especially well. That said, your own account data will always be more reliable than a universal average. Check Dashboard > Insights > Account > Most active times to see when your specific followers are online.

Should authors be using Instagram reels?

Yes, if growing your audience is a current priority. Reels get 36% more reach than carousels and nearly double the reach of static images. They're the primary discovery tool on Instagram right now. That said, reels attract cold audiences, aka people who don't know you yet. For deepening relationships with readers who already follow you, stories and feed posts still do the heavier lifting.

How often should authors post on Instagram?

Consistency matters more than frequency. Instagram rewards regularity and posting too often can actually hurt your reach. Pick a pace you can sustain without burning out, and stick with it.

What kind of Instagram content works best for authors?

Original content from a real person consistently outperforms polished brand-style content.

For reach and discovery: reels.

For engagement: carousels.

For ongoing reader relationships: stories.

The most effective content tends to be focused, consistent in topic, and genuinely personal, which is what readers are actually looking for when they follow an author.

So what should authors actually do on Instagram in 2026?

Be yourself. Original content from a real person outperforms polished brand content. Readers follow authors because they want to connect with the person behind the books.
Post consistently. Daily or weekly doesn't matter. Regularity matters more than frequency. Pick a pace you can actually keep.
Use reels to grow, stories to deepen. New readers find you through reels. Existing readers stay connected through stories. Both matter, for different reasons.
Mix your post types. Reels for reach, carousels for engagement, stories for the ongoing reader relationship.
Check your own data. Look at when your specific followers are most active and post during those windows.
Keep your content focused. The more consistent your topic (your genre, your books, your reading life) the better Instagram can match you to the right readers.
Don't sacrifice connection for optimization. The algorithm is a tool. What keeps readers coming back—and eventually picking up your book—is feeling like they know you.
Have fun with it. Readers can tell when content feels like a chore.