This book covered nearly all the topics of the so-called Rust Book (http://doc.rust-lang.org/book/first-edition), and sometimes went beyond. Nevertheless, the Book on the Rust website can still be a good resource for finding the latest info, together with a fine collection of Rust code examples at http://rustbyexample.com.
Asking questions or following and commenting on the discussions on Reddit (https://www.reddit.com/r/rust) and Stack Overflow (https://stackoverflow.com/questions/tagged/rust) can also help you out. Last but not least, when you have an urgent Rust question, chat with the friendly experts on the IRC channel https://client01.chat.mibbit.com/?server=irc.mozilla.org&channel=%23rust.
A resource for coding guidelines on Rust can be found at https://github.com/rust-lang-nursery/fmt-rfcs. Most of these style rules are already implemented in the rustfmt tool, so it is better to develop a workflow to automatically use that tool when saving code in your preferred editor.
24 days of Rust is a highly recommended article series by Zbigniew Siciarz on a multitude of advanced Rust subjects and useful crates. Consult the index at https://zsiciarz.github.io/24daysofrust/index.html.
Here are some other nice collections of learning resources:
- https://github.com/ctjhoa/rust-learning: A very comprehensive overview of all kinds of learning materials (books, videos, podcasts, and so on)
- https://hackr.io/tutorials/learn-rust: A collection of tutorials