The discussion centers on the search for a rigorous general chemistry textbook to supplement a class that lacks a traditional textbook and extensive notes. Several highly recommended textbooks include "General Chemistry: Principles and Structure" by Brady and Humiston, "Chemistry: The Molecular Nature of Matter and Change" by Silberberg, "Chemistry: The Central Science" by Brown et al., and "Chemistry" by Chang. Linus Pauling's "General Chemistry" is noted for its affordability and compact size, making it suitable for students. The "Molecular Approach" by Nivaldo Tro is also mentioned positively, particularly for those taking AP Chemistry, as it is considered a good substitute for introductory college chemistry. Additionally, "Chemistry: Principles and Reactions" by Masterton et al. is recommended based on a user's experience with their grandson's AP chemistry class. Overall, the discussion highlights the importance of finding a comprehensive and accessible chemistry textbook for effective study.