Thankfully the submission is self aware- the first sentence of the article is literally:
> This is a book about large language models.
> This is a book about large language models.
> In writing this book, we have gradually realized that it is more like a compilation of "notes" we have taken while learning about large language models. Through this note-taking writing style, we hope to offer readers a flexible learning path. Whether they wish to dive deep into a specific area or gain a comprehensive understanding of large language models, they will find the knowledge and insights they need within these "notes".