The discussion centers on the effectiveness of Schaum's series books as supplements for college physics and calculus, with a strong endorsement for their problem-solving focus over theoretical content. Users report positive experiences, noting that many math professors have relied on Schaum's books during their studies. While the Schaum's series is praised for its problem sets, some users caution about the presence of errors and typos within the texts. Additionally, alternatives like The Calculus Lifesaver and University Physics study guides are mentioned as useful resources for theory and additional problems. Overall, Schaum's books are considered valuable for practical problem-solving, albeit with a warning to verify the accuracy of the content.