Woongjin ThinkBig was established in 1980 as Woongjin Publications and focuses on educational materials for people of all ages, including study books, complete collections, single works, after-school learning materials, textbooks and online content. Divisions of Woongjin include Educational Culture Business, Future Education Business, School Culture Business, English Educational Business, Middle School Education Business, and Research & Development Division.

Wongjin Holdings recorded an average growth of 10% in the 31 years since its founding, and is the only Korean company created after 1970 to become a full-sized conglomerate.

Since 2006, the company has become involved in developing globalization centers within its English Education division, which operates 9 branches and 17 franchises, employing 250 native speakers alongside its 9,000 Korean teachers throughout the country.

In a relaunch of the company in 2014, Wongjing bundled most of its assets in the Wonjin Bookclub.

Woongjin Think Big includes many educational brands, including Woongjin Knowledge House, Leader’s Book, Woongjin Junior, Gallion, Start, Walking Tree, and Penguin Classics Korea.

Analysis & Key Developments


Wongjin ThinkBig is a leading publisher of various learning materials in Korea, though profits have plunged since 2009, according to the company’s report on fiscal year 2015. Turnover fell from 791 billion KRW in 2010 to 648 billion KRW in 2013. Revenues were stabilized over the past few years, and profitability has significantly improved.

Sixty-two percent of Wongjin’s revenue comes from worksheet publications, 27% from book series, 6% from home school materials, and 2% from single volume publications.

Internal Organization

With a turnaround started in 2014, Wongjin bundled its various content assets and focused on developing its worksheet business.

Digital subscriptions are complemented by door-to-door sales from the BookClub and tutoring services for the worksheets.


Improving digital services became the key target in the company’s recent reorientation, as the company now regards children as digital natives.

The BookClub, launched in August 2014, is a subscription service that providing various benefits for a monthly fee, including personalized book recommendations. Content is aggregated from 130 domestic and overseas publishers. Materials are organized into 20 libraries based on categories such as Encyclopedia, Young Adult, Significant Figures, and Science & Math.

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