# Parse, Don't Pray: The Case for Data Validation > A Quarto RevealJS presentation by Indrajeet Patil. Explore the benefits of data validation libraries like Pydantic and Zod. Learn how they improve readability, type safety, testing, security, and maintainability in your applications. ## Primary URL - [Slides](https://www.indrapatil.com/parse-dont-pray/) ## Source - [GitHub repository](https://github.com/IndrajeetPatil/parse-dont-pray/) ## Topics - data validation - pydantic - zod - python - typescript - software engineering - type safety - presentation - slides ## Machine-readable companion - [Full agent summary](https://www.indrapatil.com/parse-dont-pray/llms-full.txt)