In "Life Underground: Encounters with People Below the Streets of New York," sociologist Terry Williams documents the daily challenges and experiences of homeless New Yorkers who once lived in Riverside Park's tunnels, which were later repurposed for Amtrak service.

Drawing from his sociological expertise, he delves into the intricate web of societal factors that contribute to homelessness and invites readers to contemplate the complexities of living in an urban landscape while being marginalized by society.

In his book, he writes that the underground population’s “actions and responses have much to say about how we all understand, interpret, remember, and most importantly long for a place to call our own.”

Tune in Friday morning on NY1, when the next guest in the "Mornings On 1 Authors Week" series stops by.