Contrary to what usually we think the tablature is not an instrument of transcription recently, on the contrary is ancient even back to the sixteenth century. It is useful because it allows you to play the guitar without knowing the music and shows us immediately what are the frets and strings to press.
If you have never read tablature you need is a few minutes to understand how they work and to make as it were your eye on the symbols that appear there.
Each line of the tablature is a guitar string, as shown in the figures below. The first string is in tablature higher; the sixth string, the low, is represented by a line placed lower.
So the tablature shows the neck of the guitar and the strings.
Now the symbols that appear there: the symbol 4 / 4 is the time of the song.
The number placed on a line of tablature indicates you can press the fret on that string.
In the example below shows the number 3 to press the third fret on the first string.
Below, however we must press the first fret on the third string.
Zero indicates to play a string open, in this case the sixth.
Two numbers on a show to play two strings at once, in this case the third and fifth.
The fingering of the left hand:
the fingering of the left hand is represented by circled numbers that are always at the bottom of the tablature.
The index is indicated by the circled number 1, the middle from No. 2, the ring by No. 3 and the little finger from No. 4.
The example below shows fingering both the frets, press the first string is to use your finger on every fret.
The fingering of the right hand:
Fingerpicking technique to pluck the strings using only three fingers of right hand: the thumb (p), the index (i) and the middle (m). The fingers used are indicated above the tablature.