APO Video Files ( E Learning)

Hello Gurus,

I Visited the E-Leaning ( https://www.sdn.sap.com/irj/sdn/elearn) section in our SDN.But not able to find even a single Video or E-Book on APO.

Is there is not specific reason not to add the APO files in that.

Or else let me know if there is any link available for it.

Thanks.