Data updated: July 2026
열린책들 ✓
@openbooks21 · Instagram · Paju, KR · books
About 열린책들
@openbooks21's followers & following
@openbooks21 currently has 66,002 followers on Instagram and follows 5,662 accounts, a follower-to-following ratio of 11.66. That places the account in the micro tier of books creators.
@openbooks21's content
@openbooks21 has published 3,468 posts to date, working across static-posts, carousels, stories, reels. The account's content is classified under books, education. Bio: “책이 세상을 변화시킬 작은 힘입니다. 열린책들 The Open Books Co. 공식 계정 📚열린책들 책소개 @openbooks_mimesis”
AI quality check on @openbooks21
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@openbooks21's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@openbooks21's audience
Audience snapshot
50% male · 50% female
Core age group25-34
Collaboration pricing
Price tierstandard
Get the AI fair-price estimate → free trialWhich brands fit 열린책들?
Frequently asked questions
How many Instagram followers does @openbooks21 have?
As of July 2026, @openbooks21 has 66,002 followers (66K) on Instagram, follows 5,662 accounts, and has published 3,468 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @openbooks21?
Verified contact details for @openbooks21 — including business email where available — are held in Zaver, alongside contacts for 77M+ other Instagram creators. Zaver users can unlock them instantly and reach out with AI-personalized outreach. Unlock @openbooks21's contact info — free trial →
How much does @openbooks21 charge for a sponsored post?
@openbooks21 sits in the standard price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate →
What is @openbooks21's net worth?
@openbooks21's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 66K followers and a standard price tier in books, brand collaborations are a meaningful income stream — Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate →
Does @openbooks21 have fake followers?
Zaver's AI authenticity check scores @openbooks21 98/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check →
Who follows @openbooks21?
@openbooks21's 66K followers skew 50% male / 50% female, core age group 25-34. Full audience breakdowns — age bands, gender split and country-level distribution — are part of @openbooks21's report on Zaver.
Which influencers are similar to @openbooks21?
Zaver lists comparable books creators in South Korea in the "Influencers like @openbooks21" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 6,450 vetted books creators with plain-English queries.
