Sep 042014
Richard Feynman’s Lectures on Physics remains a classic to this day.
Its newest edition has recently (I don’t know exactly when, I only came across it a few days ago) been made available in its entirety online, for free. It is a beautifully crafted, very high quality online edition, using LaTeX (MathJax) for equations, redrawn scalable figures.
Perhaps some day, someone will do the same to Landau’s and Lifshitz’s 10-volume Theoretical Physics series, too?