The yellow->blue->brown series of books is a slower paced way to learn theory. It's more thorough and is meant for people with essentially zero musical knowledg

The yellow->blue->brown series of books is a slower paced way to learn theory. It's more thorough and is meant for people with essentially zero musical knowledge. You'll spend a big chunk of time on each thing. The white book is a compressed version of the previous three and is much faster paced. It's meant for people with some musical experience and exposure to theory. That said, it also doesn't spend a huge amount of time on any one thing, so while it has all the same basic information as the other 3 books, it spends less time exploring each concept. The green and purple books are more for when you want to get your theory certification from some authority (like RCM) and are more advanced :) https://ultimatemusictheory.com/ https://ultimatemusictheory.com/ also has some online courses and info available.