These chords are some of the first chords you will learn on guitar. They are essential chords that can be rearranged within a chord progression to match hundreds if not thousands of songs! Commonly referred to as cowboy chords because these were easy to remember and easy to share with others in the old days.
These chords are a fantastic starting block for learning guitar chords. Different combinations of these chords can be heard in some of your favorite songs.Â
The O on a string means to let it ring
The numbers on the frets refer to what fingers to put down on that string and fret
The X on a string means to not strum that string because it is not a part of that chord
This webpage from guitarorb.com is a fantastic resource when trying to look at open chords. There are a number of sites that provide chord charts and how to play various chords, but this site goes into great detail and even provides some famous songs that are worth learning to play!
Similar to the power chords, here is a video about the left and right hands and some tips to help you out.
Here is a great supplemental video about strumming patterns!