Books section update Cuatristas, a series of books aimed at learning about Puerto Rican Cuatro with different themes. Some of them are:
| Minor Chords / Minor Chords Minor chords in their basic positions | Major Chords / 1st & 2nd Position Major Chords in 1st. and 2nd. position |
| Do Mayor and its investments Doo Mayor in different investments (Positions) | Combining Chords: Greater Hue Learn harmonic combinations in different shades |
