KDD Book Study

	Book name	Date
1	Design Patterns	2022.09.12 - 2022.10.24
2	Refactoring	2022.10.31 - 2022.12.12
3	Clean Code	2023.01.16 - 2023.03.20
4	Test-Driven Development	2022.05.01 - 2023.06.26 (In progress)