I bought my starter kit at Ulta, where the technician tested several different shades on my skin before I settled on the medium.
I watched the 30 minute dvd, just to get an understanding of why 'less is more'. I'm used to putting makeup on until everything that I don't want people to see is covered and what I do want them to see is accentuated. Not with this stuff. When they say less is more, trust me they mean it. It took me a couple of days of swirling and tapping to get it right, but man oh man now that I have it down I just love it! It's so super easy too. Just a tiny little bit on the inside of the cover goes a long way. I use the concealer brush to do under my eyes, eyelids, nose, chin, and any problem areas that I have.