Books and Many More in Maths

George Poyla

A great mathematician he was, the following Wikipedia page will give you a number of mathematics books which you can start to work on at any stage.

https://en.wikipedia.org/wiki/George_P%C3%B3lya

 

Nicholas Bourbaki

A must follow for all true lover of mathematics.

https://en.wikipedia.org/wiki/Nicolas_Bourbaki

Bourbaki’s main work is the Elements of Mathematics (Éléments de mathématique) series.

Springer List of the books. [ http://www.springer.com/us/book/9783662437056 ] [find under “about this book” heading]