is there any way that I can find a After Effects reference?

[followjin]

I'd like to learn After Effect so that I think that I need to get a reference for After Effects. 

is it possible that I can get all After Effect reference?

please. 

[Martin_Ritter]

Are yoiu talking about the User Guide or Expression language reference?

https://helpx.adobe.com/after-effects/user-guide.html

https://helpx.adobe.com/after-effects/using/expression-language-reference.html

*Martin

[Byron Cortez]

Here you have a good resourse to learn.

After Effects Video Tutorials