Well, this post is a bit off topic. But I think I am not the only one intending to buy and read a Rust book this winter. The announced third edition of "Programming Rust" or the book of Jon Gjengset are obvious candidates. And I am aware of a few good others, like the one of Mara Bos and some more, often available freely online.

But recently I was also looking for a few other book candidates -- one of these was "Command-line Rust" published by O'Reilley. I just had a short look at theirs book's website, see Command-Line Rust [Book]

But that text (I think it is from the backside of the printed book) is so bad, that I immediately lost all motivation to further examine that book. If you should not immediately see all the issues, you might consult ChatGPT - Text quality analysis

Sorry, but I really can not believe what a garbage some "editors" in such publishing houses sometimes create. When the editors are not able to create a good backside text, how could they then improve the authors content in any way?

For the actual book of Ken Youens-Clark -- I read already a few pages at Google Books, and think it is not that bad. But I still have some doubts if it makes a lot of sense for me personally to learn how to write a cat program in Rust. And for the clap crate, we have already the free resources at clap::_derive::_tutorial - Rust and Getting started - Command Line Applications in Rust

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