If you are just joining in, I am slowly working through several books on Catholic theology and practice. Catholic Matters was recommended by a friend and is a very good next step for me.
Richard John Neuhaus is on of the better known Catholic writers in the United States. He is a priest in New York and a convert from the Lutheran stream of Christianity at the age of 54. Most Evangelicals will know him as the editor of the Institute on Religion and Public Life’s publication First Things. Neuhaus passed away in 2009.
Neuhaus was a great believer in ecumenical activity (the idea behind The Institute on Religion and Public Life and his earlier Institute on Religion and Democracy). He along with Charles Colson were the prime drivers behind the Evangelicals and Catholics Together statements that provided a significant part of the discussion material from Mark Noll’s Is The Reformation Over (reviewed earlier).