FYI, the following books are available online for free:
1. Statistical Inference as Severe Testing: How to Get Beyond the Statistics Wars (Cambridge University Press, 2018) by Deborah G. Mayo. (This book is available online for free from August 1-31 at this link.)
2. Introduction to Utilitarianism: An Online Textbook (Oxford University Press, 2022) by William MacAskill, Richard Yetter Chappell, and Darius Meissner.
3. Also, check out “Project Gutenberg“, an online library containing over 60,000 free eBooks.