Let me further specify: Which of the following texts would be the best for understanding REAL WORLD applications of calculus, and approaching it in a practical manner? Okay, so maybe Spivak and Apostol can be removed from the list as they are a rigorous theoretical approach. How about the rest? Is there a better book than the ones listed? I studied Spivak and understood the theoretical side of Calculus. It was extremely entertaining! I enjoyed it. But I also want to learn the applications of calculus, which Spivak doesnt really go into... I was thinking about Anton or Stewart... any suggestions?