Greenberg has spent a large portion of her life helping others with physical and mental challenges. In her book In This Sign (1984), Greenberg follows the lives of deaf parents and the challenges they must face in raising a daughter who can hear.

Where the Road Goes, Greenberg's 1998 publication, follows the journey of a grandmother who believes she must once again take a political stand by walking across the United States.

John Neufeld's Lisa, Bright and Dark (1969) tells the story of a sixteen-year-old who suffers from a mental breakdown. Lisa's parents do not understand what is happening to their daughter, so Lisa turns to her friends for support.

The novel Go Ask Alice (1971) by James Jennings, written in diary form, tell the story of a teenage girl who suffers from terrible mood swings that are exacerbated by drug use.

The novel...