Libraries : what is the difference between "example.h" and <example.h> ?

I like using a particular library, its called example.cpp

a particular application I need requires a variation of example

Do I make a new library called example_new with the changes I need ?
or is there another way ?

I read somewhere you can include a library in your sketch folder (rather than in libraries folder)
and I also read about the use of #include “example.h” and #include <example.h> but I dont know how and when to use them

Can anyone fill me in please ?


Thank you John, I think that tells me what I need to know :)