Robert Caro’s 1974 biography “The Power Broker” is a book befitting its subject, Robert Moses — the unelected parochial technocrat who used a series of appointed positions to entirely reshape New York City and its surrounding environment for generations to come. Like Moses, Caro’s book has exerted an enduring and outsize influence. This week, Caro joins the podcast and tells the host Gilbert Cruz how he accounts for its enduring legacy.

“People are interested in power,” Caro says. “This is a particular kind of power. Robert Moses’ power was unchecked power. We all live in a democracy where we think that power comes from our votes at the ballot box. He was a man who was never elected to anything and he held on to power for 44 years, almost half a century. And with the power, this man who wasn’t elected to anything shaped New York and its surrounding suburbs. So I think, if you’re interested in government, you have to say, as I said maybe 55 years ago when I started this, How did he do it? What happened here?”