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.
For the most complete in-depth information, consult the reference at https://doc.rust-lang.org/stable/reference.html.
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...
