ChainsawCritters

I am a Chainsaw carver that has just went through a triple bypass and can't carve wood anymore, so need to get into something to carve. I have chose leather, but like all hobbies, I need to get some learnen. LOL I need to find out what tools to use first on the cuts then how to feather, or shadow or what ever you call it . Can I get any help with this? Thanks in advance. Ed