Learning Something New: ATCs

So as I've been on this artful journey I have discovered many new materials, mediums, and people.  I found a few groups on Facebook that I really enjoy and love.  They re-introduced me to swaps and happy mail.  Soon I discovered ATCs= artist trading cards. Little cards that are 2.5 by 3.5 inches, the size of a baseball card and filled with whatever art your little heart and brain can image.  I love them, I've become obsessed. I've made a few