A while back, I found this pin and I knew... I just knew I had to do it. If you click on the link of the pin you can find the tutorial. It's pretty simple and easy to figure out. She drew a grid over the picture and drew the photo using a larger scale grid on the wood. I numbered each box so that it was easier for me to see the lines in as I drew in each box. I did the whole thing with ONE sharpie! I must say, I really love it!