Jquey Plugin and Library

Jquey Plugin and Library

Hi All,

I am trying to develop Jquery Library.
But i am not getting any help in the web.
When i search for Jquery Library Development the help that i get is Jquey Plugin development but not Library.
Is Jquery Library and Plugin development are same or to develop a library i have to use plugin development. 
Kindly help me ASAP.

Thanks in advance.