Has anybody purchased the Hook Theory I and II books from this website ? They sound interesting to me - would love your opinion, or alternative options if you have them. One of my other favorites in this genre is "Songwriting Secrets of the Beatles", by Dominic Pedler. As a guy whose ear is pretty bad, this books has helped me find and practice the more important progressions, helping my ear.

As always - thanks in advance for sharing your hard-earned knowledge.

Hook Theory Website