Free Math, Physics and Biology Books
Fifteen free books: five connected mathematics volumes, five physics books and five biology books from Grade 1 to bachelor level, all in eight languages. Read online or download the PDFs.
- 3 subjects: mathematics, physics and biology, each from Grade 1 to university year 3.
- 15 free books, 559 chapters, every exercise solved.
- 561 chapters readable online in English, French, Dutch, Spanish, Portuguese, Hindi, Arabic and Indonesian — free, no account.
- 3 free learning games: mental math, vocabulary, and world geography.
- Open source: the books are written in LaTeX and developed openly on GitHub. Free forever, no ads.