If for any reason you want to have the theory behind chords, without the guitar related explanation…
here is the full set of pdfs detailing the building blocks method you need to build chords of your choice, connect patterns to names, master the topic.
The triads – major, minor, augmented, diminished, relations between them, practical tips, suspended chords. Right click and save as.
Introduction to Seventh Chords Right click and save as
Seventh chords in practice Right click and save as
Diminished and half diminished Seventh chords Right click and save as
Sixth chords – the sixth interval Right click and save as
Flat fifth and sharp 4th chords – changing the basic chord name Right click and save as
9th-11th-13th Right click and save as
added 9th – 11th -13th Right click and save as