Cycles tutorials (html format)

Hi, Please could anyone show me where to get html tutorials on Cycles render? I started using blender abt 3wks ago.
The issue is that my internet connection is really slow so streaming videos is not feasible for me. ( I’ve come across so many video tutorials but can’t watch them, I can’t download them either)
Please any suggestions would really be appreciated

There is a section in the manual, might be a good place to start.

Thanks a lot.