If you want to learn Silo, a good start may be to watch Glen Southern's minotaur videos. He touches on a lot of functions that you'll be using in Silo to model including edge loops, spinning edges, how to create edge loops for good topology, symmetry, changing edge loop direction, soft selections, etc.

There is a also a book (you can get it on Amazon) called 3D Modeling in Silo.

Laurie