Highconsy Books (co-CEOs Oh Woo-seok and Lee Hae-won) announced Thursday that it launched the "Lee Hae-won Institute Textbook Pass" package on November 28 for students preparing for the 2027 College Scholastic Ability Test (CSAT), Korea's national college entrance exam.
The package presents a full-year math curriculum at once and delivers textbooks automatically like a subscription service, the company said.
The textbook pass is designed to help students understand at a glance what, when, and how to study throughout the year. It provides a step-by-step learning roadmap from basic math concepts to past exam problem-solving and practice mock tests, reducing the burden on students who struggle with planning their studies.
The package features an automatic delivery system where math concept books, past exam workbooks, and practice mock tests are shipped sequentially according to the semester schedule after a single payment. Students only need to pay once upfront and then automatically receive the necessary materials at each learning stage.
"The biggest concern for students preparing for the math section is the strategy of 'how to structure a year of learning,'" an Integrate official said. "The core of this pass is systematically designing the learning flow from concepts to problem-solving to past exams in line with the CSAT schedule."
The package is divided into a "Premium Pass," which covers the full range from math concepts to practice tests, and a "Standard Pass," which focuses on past exams to strengthen practical skills. Both products are structured to enable step-by-step learning across Math I, Math II, Probability and Statistics, Calculus, and Geometry.
Package purchasers also receive four issues of "Integrity," an analysis of the latest past exams and upcoming mock test questions produced directly by author Integrate, along with one Lee Hae-won mock test for the June 2027 CSAT preparatory evaluation.
Limited-edition merchandise produced based on student preferences, including a study kit, tablet stand, math notebook, and mock test storage box, is also included, with different gift sets depending on the package type.
"The subscription-style textbook pass is a service that enhances convenience by automatically delivering textbooks so students can follow the appropriate learning stages at the right time," a Highconsy official said. "Students aiming for a top grade in CSAT math who need long-term study management can achieve stable exam preparation just by following the annual curriculum we present."
Detailed information about the math textbook pass products and benefits is available on the official Sidaein Books website operated by Highconsy.






