For calculus, I like this book [1] for self-study. Also the Schaum's Outlines are great no-nonsense introductions. They're both gentle introductions, while stil

For calculus, I like this book [1] for self-study. Also the Schaum's Outlines are great no-nonsense introductions. They're both gentle introductions, while still being useful. For probability, I really like Morin's book [2]. It starts really basic (like, super basic), but builds up a coherent understanding of lots of useful distributions, where their density functions come from. [1] https://press.princeton.edu/books/paperback/9780691130880/the-calculus-lifesaver https://press.princeton.edu/books/paperback/9780691130880/th... [2] https://scholar.harvard.edu/david-morin/probability https://scholar.harvard.edu/david-morin/probability