This post includes 37 open chords that are used in the book ‘Open Chords Made Easy‘.
Each chord has a unique number so that you can easily locate a particular chord when playing one of the pieces. This is all explained in the lesson, how to read the strumming guides and chord charts.
37 chords? Yes, that’s a lot. There are really only 15 main open chords, but there are a lot of small variations, which is why so many have been included.