How to hire spy

I played Civilization V and i now go the Gods and Kings Version... So i'm quite new.

I've been playing awhile and and i was the leading in the Tech Tree (I only go for Dom Victory i set)

But annoyingly other people started trying to steal my tech so i set a Spy (I Dun know how i got it) to my capital to stop the steal and it's like once every 10 turns my spy kills another spy :)

But i look at the Spy Menu but i can't recuit spys... (I Want more cuz i'm interested) i've been looking for a button or objective to get a new spy

Can Some king fella tell me where the button/ What to do :)

Ok Nvm Found it