Reading list: How does Test Driven Development (TDD) improve software testing efficiency?
Test Driven Development (TDD) improves software testing efficiency in several key ways:

Early Bug Detection: In TDD, tests are written before the code itself. This ensures that bugs are identified early in the development process, making it easier and faster to fix them. Since tests are created first, developers can immediately see if the code they write passes or fails, saving time compared to traditional debugging.

Clearer Requirements: Writing tests first forces developers to think through the functionality of the code before implementing it. This leads to a better understanding of the requirements and helps clarify how the system is expected to behave. It reduces the risk of misunderstandings and unnecessary changes later.

Continuous Testing: Since tests are integrated into the development process from the start, TDD encourages continuous testing. As new features are added or code is modified, automated tests ensure that existing functionality remains intact, providing quick feedback on code changes.

Reduced Regression Issues: TDD minimizes the chances of introducing bugs when modifying code or adding new features. The test suite is always up-to-date and verifies the correctness of the system, making it easier to detect and fix regressions early.

Higher Test Coverage: TDD leads to more comprehensive test coverage. As each piece of functionality is developed with its corresponding test, it ensures that all code paths are tested. This results in fewer untested scenarios and better overall software quality.

Better Code Quality: Since tests are written before the code, developers are motivated to write clean, modular, and testable code. This improves the overall quality of the software and makes it easier to maintain, as it encourages developers to focus on writing simple, well-defined functions and methods.
https://www.samyak.com/news-post/test-driven-development/