The discussion centers around recommendations for accessible science books, particularly for someone new to calculus and physics. Participants agree that many popular science books, such as "A Brief History of Time" by Stephen Hawking and "Zero: The Biography of a Dangerous Idea" by Charles Seife, are intended for lay readers but can still be challenging. Some suggest that while these books are designed for general audiences, they may not be suitable for those with only basic knowledge, especially as the content becomes more complex. Recommendations also include works by Simon Singh and Brian Greene, noted for their clarity and engaging explanations of scientific concepts. Overall, the consensus is that popular science books are beneficial for beginners to gauge their interest in the subject, though some may find certain texts more accessible than others.