About One Course
One Course writes one clear, rigorous and continuous course per subject — mathematics, physics, chemistry, biology and Earth and space sciences today — from the first school years to the end of a bachelor's degree.
- 5 subjects: mathematics, physics, chemistry, biology and Earth and space sciences, each from Grade 1 to university year 3.
- 24 free books, 856 chapters, every exercise solved.
- Professional track: One Quant Book, 20 free books and 558 chapters on quantitative finance, in English.
- 1416 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.