- Includes 15 previously restored questions
- Fully reflects 25 years of verification standards and verification content
- Rapid updates are provided on average once every four months.
(Includes the most recent test questions)
- A textbook that serves as a standard for CS Leaders Managers

『15 Practice Tests for CS Leaders Managers to be Completed in a Week』(aka Norangi) is a test prep book written by the most experienced lecturer who has taught CS Leaders Managers since their inception. Each test is analyzed and updated quickly.
A key feature of the CS Leaders Management Exam is that it is updated regularly (once every four months), rather than being revised annually. This means it includes even the most recently released questions. The CS Leaders Management Exam presents new questions each time, and this textbook aims to increase the passing rate of self-study test takers.


The number of mock exams has been increased from 10 to 15, allowing students to solve a wider variety of problems.
We have included questions from previous exams in 2025 to help you prepare perfectly for the actual exam, and the explanations are also written based on the questions that appeared on the exam.

This will be of great help to students preparing for the exam through self-study, as they will be able to understand the exam trends and practically prepare for the exam by studying a variety of actual exam questions.

Of the 15 mock exams, 11 contain only the law problems that appeared on the exam, and 12-13 contain only occasional problems and new problems. The last chapter of the mock exam contains the terms/laws that appeared on the exam so that you can organize them all at once.

This textbook has been consistently popular among self-study students since its official publication in 2016 (it was only sold at cafes for the previous two years). (It has been the undisputed number one seller since its publication.) Many textbooks published later have benchmarked this textbook, but none can match its know-how.

The author of this textbook, Director Byun Mi-young, is the only instructor in Korea who has taught CS Leaders Management since its inception. She analyzes all exam questions and regularly updates the textbook according to the exam type.

Therefore, it can be said to be the best textbook for self-study, and if you study the concept book and two mock exam books diligently, you will be able to pass the exam.