A stirring picture book biography of one of Latin America's most beloved singers and human rights advocates, Mercedes Sosa. Have you ever heard a song that made your heart soar? A canción that captured your corazón? A voice so powerful that it made you feel ready to change the world? This is the story of a singer whose voice sailed through the air like the wings of a condor, inspiring people everywhere. Written and illustrated by Aixa Pérez-Prado, this is the powerful biography of Argentinean folksinger and human rights advocate Mercedes Sosa. Affectionately known as La Negra, Mercedes used her musical talents and powerful voice to speak out against poverty and inequality in her home country. In the face of a cruel dictatorship, Mercedes refused to be silenced. She bravely stepped on stage to lend a "voice to the voiceless" with uplifting songs of empathy and empowerment. Her unforgettable music and messages of hope continue to resonate with people across the world to this day.