Okay, confession time - I bought this book thinking it would complete my music theory journey. Spoiler: it didn't. But let me break it down for you.

First, the good stuff: Mark Harrison knows his chords EXTREMELY well. Like, scary well. The way he breaks down chord extensions is actually mind-blowing. I never thought I'd geek out over Lydian modes and double-fourths, but here we are.

The exercises? Super helpful. Having answers right there is a lifesaver when you're working through complex concepts at 2 AM (don't judge my study habits).

Now the rant: WHY JUST CHORDS? The first two books covered so much ground, and then BAM - 200 pages of chord extensions. Useful? Yes. Complete? Not even close. Where's the pop progression analysis? Blues theory? Anything beyond jazz piano land?

Price-wise, totally fair for what you get. But be warned - you'll finish this feeling both enlightened about chords and frustrated about everything else that's missing.

Final verdict: Great reference book if you need deep chord knowledge, but don't expect it to round out your theory education.