Languages - guidances,ways to learn.

Hi! In addition to my previous thread about it career - I would like to ask about languages. 
What is the best language to learn? 
I can see that top-3 now looks like 1.Chinese 2.English 3.Spanish. 
But that is just because of majority of that languages all over the world, and what about IT market - what languages are appreciated? 
Also would like to hear something about translation tools which can help to generate a CV with the usage of unknown language for me. 
Thanks in advance ! <3