Encyclopedic dictionary of Mathematics I'm looking for a complete dictionary about Mathematics, after searching a lot I found only this one http://www.amazon.com/Encyclopedic-Dictionary-Mathematics-Second-VOLUMES/dp/0262090260/ref=sr_1_1?ie=UTF8&qid=1323066833&sr=8-1 .
I'm looking for a book that can give me a big picture, well written with a clever idea in mind from the author, a big plus can be the presence of railroad diagram or diagram with logic connections between the elements.

You might first try the updated version of the book you mention, the Encyclopedia of Mathematics which is freely available via the quoted link. Then, since this encyclopedia is very weak on applied mathematics you could have a try with Engquist (ed): Encyclopedia of Applied and Computational Mathematics. This will give you a cross-disciplinary overview of mathematics.
