I was able to hear Sinclair preach. He is a marvelous preacher and teacher of God's Word. He is also a wonderful godly man, and he actually took time at the conference to sit and pray with me and my wife, and to sign a book, and to even chat a bit with us about the Church.
Here's a video about his latest book. I haven't read it yet myself, but I will soon enough.
I like how he said, "The world needs to full of books about God's grace."