Books that helped you become a better musician

This Is Your Brain On Music by Daniel J. Levitin - Everyone in the world should read this book. Epiphanies all around.

The Music Lesson by Victor L. Wooten - I'm not a fan of his music or his writing, but this book has some grand ideas.

Ive not read many music related books. Pretty much just theses two.

Tchaikovsky

and

musicophilia

Neither have much to do with the theory of music anyway.