Should I read a book like 'Rust for Rustaceans' or 'Programming Rust' to get better at Rust after finishing 'The Book'?

The author, after reading 'The Book' on Rust, is contemplating whether to read 'Rust for Rustaceans' or 'Programming Rust' for further improvement or if they should focus on building projects instead, particularly mentioning a gap in knowledge on Async Rust.