Yeah, I figured they were probably in there somewhere. It's possible I read the book before they were added, or that I skipped them (I glossed over some of the final chapters), or it's possible I just didn't fully grasp how important they were until I followed the linked-list tutorial.

What I like about the latter is how closely it steps through the problem-solving process within the context of a very familiar task, teaching you at each stage 1) why the borrow-checker is upset and 2) what tool you need to apply in order to satisfy it. If the Book taught me "what is Rust and what are its features?", this taught me "how do I use Rust in practice?".