Why is it hard to learn Amazon AWS

Amazon AWS is awesome. And it is not really difficult to learn - except the part of reading documents and learning terminology.

If you want answer for one thing, AWS could give you more than one places. For example, if you wanna know how to SSH into your instance, here are the two places in the same user guide:

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AccessingInstancesLinux.html

and

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-connect-to-instance-linux.html

I wish the learning experience can be easier.