Theory Is Fun, Bk 2
Hirschberg, David Book 2 in the Theory Is Fun series introduces major scales, key signatures, major, minor, perfect, diminished and augmented intervals, major, minor, and diminished triads, tonic, dominant, sub-dominant, natural minor and harmonic minor scales, and chords in root position, first inversion, and second inversion. Sight reading pieces are included at the end of the book.