Tatting can be done either from a diagram or with written instructions. I had never learned to tat from a diagram so when I saw a pattern I wanted to do, I searched for how to read a diagram. A very friendly tatter saw my post on another tatter's blog and told me to buy the book " Tatting With Visual Patterns" by Mary Konior. I did and this is the result of my first piece of tatting done from a diagram.
I don't like the way the heart starts and finishes so I may change that the next time I make one. The only problem I had with the pattern was that I needed to switch shuttles on some of the chains, but the pattern didn't say anything about switching shuttles. I learned this after winding my shuttle and starting the heart, but managed to attach another shuttle and go on my merry way.