Our guidelines are to ask only one question per post. That question is asking two questions: please recommend a good linear algebra text; please recommend a good calculus text. When a single post asks multiple questions, it may be closed as "too broad". It'd be better for the poster to split them into two separate posts.
The text under the closure notice refers to this. It says:
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once.
Separately, book recommendation questions often don't work well in the Stack Exchange format. They often degenerate into opinion polls or lists of items, and those kinds of questions aren't a good fit here. Such questions risk being closed as "opinion-based".
Here's my advice about how to make those questions work well:
Read the site guidance. Read Is it appropriate to ask for references and book recommendations? and follow the guidelines there.
Do your research first. If you just want to know what's a good book to read, this site might not be the place for that. Instead, I suggest you do your own research. There are good ways that you can get a very good sense of what books are well-regarded. First, look at a set of top university math departments, and see what textbook they use in their course on that topic; see which ones are frequently used. Second, look at reviews on sites like Amazon and Goodreads. Between that you should usually be able to identify a few reasonable candidates; and normally, any one of those will be fine.
Articulate a specific need. Don't ask "what's the best book on X?" or "what book on X should I read?". Instead, identify your specific objectively verifiable requirements. What topics does it need to cover? What level? What do you want to learn? (Proofs? Foundations? Intuition? Practical skills?) What kinds of background do you have?) Show your research, what books you've already come up with, and why you've rejected them. What requirements do they feel to meet? If you just ask for a good book or a book recommendation, you're calling for opinions; this site is best for objectively answerable questions, not opinion polls. Everyone has their own criteria for evaluating books, so asking for the best book to read will be inherently subjective.