For self-teaching classical physics, several textbooks are recommended, including "Physics for Scientists and Engineers" by Serway, "Fundamentals of Physics" by Halliday and Resnick, and "University Physics" by Young, Freedman, and Ford. While Serway is a solid choice, Halliday and Resnick are suggested for their strong problem-solving focus. The Feynman Lectures on Physics are also highly regarded as a supplementary resource, offering a unique perspective that can deepen understanding and appreciation of the subject. It is noted that many calculus-based physics textbooks cover similar material, so if Serway is working well, there may not be a need to switch unless a different style is preferred. The Feynman Lectures, while challenging, are valuable for their engaging approach and can be revisited for deeper insights over time.