A dedicated "Science" category filled with community-reviewed work.
Charles Darwin, Thomas Huxley, and Albert Einstein. Formats: EPUB, Kindle, and plain text. 2. Open Library Popular science. Free e-books download.
If you search for right now, here is what you should grab immediately. Most popular science books from the last 50
This guide will navigate the legal and ethical landscape of free e-books, provide you with the best digital libraries to satiate your curiosity, and offer a curated list of must-read titles that won’t cost you a cent. and Albert Einstein. Formats: EPUB
Most popular science books from the last 50 years (like A Brief History of Time or Guns, Germs, and Steel ) are NOT in the public domain. However, there is a massive collection of classic pop-sci from the 1800s and early 1900s that is free, plus modern authors who release work for free to build an audience.
Access to out-of-print science books from the 20th century.