Basic Open Chords

The numbers on the dots are the fingers to use for that note of the chord. 

Index - 1

Middle - 2

Ring - 3

Little - 4

The red dot represents the root note of the chord, i.e the E notes in the E Minor chord.

All of these chords are used in countless pop songs throughout the decades, so are well worth practicing in their own right, and then apply them to songs.