I am going to try to make some mosaic stepping stones. Any tips?

[Phentex]

I saw a large mosaic guitar at a festival last week (which was INCREDIBLE!) and I was reminded that I've always wanted to do mosaics. I'd like to make a table top for my porch some day. No idea where to get started on this. I figured some stepping stones would be an easy way to learn.

I tried to find a class in the Atlanta area but there don't seem to be any ongoing mosaic classes. Then I was told to watch a bunch of youtube videos which did help as far as what supplies to use and that sort of thing. But some of the finished projects were terrible. And then others were super advanced.

Is there a book you'd recommend? A specific video? Anything?

TIA