Wonderful news but particularly sickening for me as I fished out £130 for the hardback volumes last year!<p>Absolutely great books however!<p>I've learned a lot already from those books.<p>Also, the "For the Practical Man" (algebra, geometry, trig, arithemtic) series of books on mathematics that Feynman started his career with. They are hard to get hold of and expensive but the calculus book is wonderful if incredibly dense and written in an early 1900's style!<p>Those, a cheap Casio calculator, a box of pencils and some school exercise books have taught me more than a university degree and years of industry experience.<p>Edit: found a legitimate PDF of "Calculus for the practical man" <a href="http://physsocyork.co.uk/notes/J.%20E.%20Thopmson--Calculus%20for%20the%20practical%20man.pdf" rel="nofollow">http://physsocyork.co.uk/notes/J.%20E.%20Thopmson--Calculus%...</a>