"Have a Little Faith" follows the lives of two religious men. One is Albert Lewis, who appeared destined to be a rabbi from birth and was Mitch Albom's childhood rabbi. The other is Henry Covington, a born-again Christian back from the brink of crime and drugs, who is serving the homeless of Detroit in a cold, leaky church.

Albom was raised Jewish but left the synagogue (except for the High Holy Days) for the bulk of his adult life. He even married outside of his religion.

His life changes when Rabbi Lewis, whom he affectionately calls the "Reb," asks him to write his eulogy. Coincidentally, Albom discovers that "Reb" is also Covington's nickname.

"Have a Little Faith" is filled with hope, renewal, humor, promise and insight.

Over an eight-year period Albom flies from Detroit back to his hometown in New Jersey to see Lewis. Meanwhile, back in Detroit he struggles with what to make of Covington. Albom wonders if Covington is the real thing. Is he really a reborn Christian working with the homeless? Or just another pretender?

Albom divides the book into the four seasons. Just like the book of Genesis, he starts with two pages devoted to "In Beginning ..." Within is the explanation of how he arrived at the keyboard to write the book. "This a story about believing in something and the two very different men who taught me how," Albom writes.

Albert Lewis is a humorous character. He keeps a file on God, sings replies in show-tune vocals and quips from the pulpit. He hands out wisdom by the armful in a most understated way.

Though raised with a belief in God, life in the projects takes a toll on Henry Covington. After the death of his father, Covington begins a downward slide into addiction and crime. Albom writes of Covington's conversion when he was at the end of his rope, armed with a shotgun and hiding behind a set of trash cans from men bound to kill him. "Will you save me Jesus?" he asks. "If I promise to give myself to you, will you save me tonight?" Delivered from death, Henry Covington becomes a pastor to the homeless.

Albom pulls few punches about what he thinks about the perils of religion. He discovers, however, wisdom from Lewis and sees dedication to the poor and destitute from Covington. Each man follows his belief system in service to others.

When asked why Lewis is so devoted to his rituals, Lewis relates, "Mitch," he said, "faith is about doing. You are how you act, not just how you believe."

By the end, much food for thought has been delivered and a chance to rethink a spiritual journey has been introduced.

After Lewis dies, Albom delivers the eulogy that is contained in the final pages. Ultimately, "Have a Little Faith," is the best eulogy any rabbi, pastor or leader from any religion could hope would reach such a broad audience.