A user seeking to refresh their knowledge in mathematics, specifically in mechanics, calculus, and algebra, is looking for book recommendations. Several users suggest resources, including "Schaum's Outline for Calculus," which covers the relevant topics and is noted for its enjoyable reading experience. A preview of this book is available online. Another user highlights a linear algebra book that includes applications in quantum mechanics, expressing interest in its upcoming print version, which is expected to be released after final edits are completed. The discussion emphasizes the importance of accessible and engaging math resources for learners returning to the subject.