Explore the world of Rust macros in this 39-minute conference talk by Alvin Ramskogler at Rust Linz, May 2022. Uncover the mystery behind the exclamation mark in "println!" and gain a comprehensive understanding of how macros function. Learn to effectively use existing macros and develop your own custom implementations. Ideal for Rust developers who are already familiar with macros but seek to deepen their knowledge and practical skills in macro creation and usage.