Share 'Trimming for show'

I know that this topic has been discussed over and over again, but I can't seem to find any answer that fits exactly what I need. I need to trim my girls for a show and have zero experience, so I'll not be doing it myself. I have a friend that has a lot of experience trimming, but not setters, so I was wondering if any of you could send me any images or pictures that would show exactly what to do…