I've been reading the early access version for a while now, and it is excellent. I hadn't had much luck with the "official" documentation, previously.
Jim Blandy's writing is an exemplar for good teaching technique, and this book is shaping up to be the go-to recommendation for learning Rust, in my opinion.
Jim Blandy's writing is an exemplar for good teaching technique, and this book is shaping up to be the go-to recommendation for learning Rust, in my opinion.