No I have not.
I've read most of the "Sovereignty of God" by A.W. Pink, some of "The Obedience of a Christian Man" by William Tyndale, and many other books...
but it's been a while since I did anything other than read the Bible itself.
I'm sure that he does.
However,
While I'm familiar with John Piper ( and other prominent and so-called "Calvinists",
as well as others in the public eye these days ) I'm uncomfortable with how much of a "cult following" that writers who pen Christian books have been getting the past 100 years or so.
In fact, I'm reminded a bit of 1 Corinthians 3:1-9 when I think on the subject.
That's one of the reasons why I tend to avoid mentioning teachers and preachers in my posts ( or in conversation with other believers ) anymore,
because of the tendency of some ( especially younger believers ), to get carried away with ministers and what they have to say, instead of pursuing what has become the central focus for me the past 20 years or so...
God's word.
That doesn't mean that I don't read some of them, on occasion, and agree with their conclusions...
But it does mean that I've made a conscious choice to place Christian writers way out on the "back burner", and the Bible alone on the front.