From core past exam questions to high-quality modified questions, all in one book!
A perfect collection of past and modified exam questions to prepare for the CSAT, perfectly aligned with the latest CSAT exam trends!

Are all the college entrance exam question books the same?
2027 Rebirth is different!

Past exam questions and modified questions in one book, 1:1 format!
- A 1:1 twin composition of carefully selected past exam questions from the College Scholastic Ability Test, Evaluation Institute, and Office of Education that are in line with the trends of past College Scholastic Ability Test questions.
You can perfectly prepare for the CSAT by studying the included high-quality modified problems at the same time.

The textbook is divided into three volumes, making it easy to learn without any burden!
- The textbook is divided into three volumes: past exam questions, modified questions, and explanations, allowing for light and stress-free learning.

Strengthen your practical application skills through various transformation problems, such as number transformation and special transformation!
Not only is the number transformation problem optimized for repetitive learning, but it also utilizes the core idea of ​​the problem.
It includes various transformation problems, including special transformations, to help you strengthen your practical application skills.

You can master past exam questions in 5 levels of difficulty!
- Classified from Step 1 to Step 5 according to difficulty, from basic problems to difficult problems
You will be fully prepared for step-by-step problems.

In addition to the basic solution, we provide unique approaches and solutions!
We provide not only basic solutions but also unique approaches and solutions.
We provide supplementary explanations to help you solve problems, making it easy to understand the solutions.