7,488 Guitar Chords

I bought a used book a few days ago with a very extraordinary title, 7,488 Guitar Chords. I have a guitar and know a few chords, let me think what:

A, A7, Am, B (not very well), Bb, B7, Bm (not very well), C, C7, D, D7, Dm, E, E7, Em, F, G, G7, Gm. Mostly those, though I have known others when I've needed them, then have promptly forgot them. So that's under 20. That leaves me 7,400 some to learn!

I can barely believe there are so many chords, but the author says, "The chord possibilities of the guitar are almost endless." The author's name was Jay Arnold. But when you actually look in the book, as an example, you see he has listed 28 ways to do the C chord. There's another 28 ways to play Cm.

Some of the chords look so hard I would need nine inch fingers to do, like some of the variations of the Eb thirteenth minor ninth diminished fifth chord. Just the name of it's a killer. It's on page 69 and maybe should be in an appendix by itself with a "Caution" sign next to it. One of the variations has the first finger on the sixth string (lowest E) at the fifth fret, the second and third finger as though playing an E chord starting at the sixth fret, then the fourth finger covering string one and two on the eighth fret. Tough looking

I'm getting to be an old dog who's finding it hard to learn new tricks. I bought the book more for reference and the ability to look up any weird chord I hear of than the desire to learn 7000 ways of doing eight chords. But it's a cool book to see.