Hi, I've got a Masters in Physics, but always feel that I'm missing out slightly by not knowing and appreciating the beauty that there is in all the maths I never had cause to study in my physics degree. Is there a book (or set of books) that does for maths what the Feynman Lectures do for physics? As in books that take relative novices and then give them a good understanding of the subject. I think Feynman only assumed a knowledge of as much calculus as you could fit on a postcard and then took them through the first two years of a university degree, which might be a greater challenge for a book on maths. Anyway, does anyone have any recommendations? Thanks.