@chriskrycho and I are working on a new chapter covering async Rust for The Rust Programming Language book!
We're at the stage where we could use some readers in our target audience (people new-ish to Rust) to give feedback on clarity and whether we're covering the right topics at the right level of detail. We're hoping to get a few readers this month, but we may need more people in the future.
If this sounds like you and you're interested in helping out, please fill out this form! Thanks!