As seen in the graphic below, there is a guitar numbering system in place that indicates which finger to play relative to the frets. See the guitar fingering chart below for more information on guitar fingering notation.
Note: The dots on the side and face of the guitar neck are placed before the 3rd, 5th, 7th, 9th, 12th, 15th, 17th and 19th frets. The 12th fret has two dots. These dots help you find your way on the neck.
Lessons from eMedia Music use the finger and string numbering systems shown above.