String art is believed to originate from the 17th century in England. Carried out by stretching threads in a particular sequence to nails piercing any solid background, this type of art is very demanding as it requires the artist’s commitment to working for long hours.
In order for the image to be formed with string, it is first drawn on the surface where the nails are about to be fixed. This drawing guides the artist as to where to fix the nails, and also forms an orientation map, so he knows in what direction to stretch the threads.
See how this technique is done by Instagram user Art by Zen.