SQL is a crucial skill for Software Engineers, akin to System Design and Coding.Understanding advanced SQL concepts beyond basic queries is essential for full-stack developers.The article lists 10 recommended SQL and Database design books for software engineers.Books like 'Head First SQL' and 'SQL All-in-One For Dummies' cater to beginners and experienced professionals alike.'Read Practical SQL' focuses on using SQL for data analysis and storytelling.'SQL Antipatterns' helps avoid common SQL mistakes, while 'Joe Celko's SQL for Smarties' is great for improving SQL query skills.'Learning SQL' offers a comprehensive guide from basics to advanced features.'SQL Performance Explained' by Markus Winand is highly recommended for understanding SQL indexing.'SQL for Data Analysis' covers advanced techniques like time series analysis and A/B testing for data transformation.The article emphasizes the importance of continuous learning in SQL for both developers and data engineers.