The reading passage claims that e-books are superior to traditional paper books because they are more affordable, environmentally friendly, and convenient. However, the professor in the lecture challenges these claims by highlighting the disadvantages of digital books. First, the reading states that e-books are cheaper than printed books because they do not require paper, printing, or shipping costs. However, the professor refutes this claim by explaining that while e-books may seem cheaper at first, they often require expensive devices such as tablets, e-readers, or smartphones. Additionally, he points out that some e-books come with digital rights management (DRM) restrictions, preventing users from sharing or reselling them, unlike physical books that can be reused or borrowed for free from libraries. Second, the reading suggests that e-books are more environmentally friendly because they eliminate the need for paper, reducing deforestation and pollution. In contrast, the professor argues that electronic devices used for reading e-books create environmental problems of their own. He explains that manufacturing e-readers requires rare materials and generates electronic waste, which can be harmful to the environment. Moreover, he notes that electronic devices consume electricity, whereas printed books do not require any power to read. Finally, the reading claims that e-books are more convenient because they are lightweight, portable, and allow users to store thousands of books in a single device. However, the professor challenges this idea by stating that reading from screens causes eye strain and fatigue, making it uncomfortable for long periods. He also explains that e-books depend on battery life and internet access, which can be inconvenient in certain situations, such as while traveling or during power outages. In conclusion, while the reading passage presents e-books as a better alternative to printed books, the professor disagrees. He argues that the costs of digital reading devices, their negative environmental impact, and the discomfort of screen reading make e-books less advantageous than the reading suggests.