One book she read from was "100 codes from Steam"

It seems like you're referring to a book titled "100 Codes from Steam." However, there isn't much publicly available information about a book by that exact title as of my last update. If you could provide more details or context about the book—such as its themes, author, or what it's about—I may be able to assist you better. Additionally, if you're looking for specific codes or content from the book, I'd be happy to help with information related to codes or programming concepts generally discussed in similar contexts.