Question: Which professional basketball player won a NBA championship and spoke positively on the book "the 21 irrefutable laws of leadership"?

Related documents: [0]  [DOC] Harrison Bryce Jordan Barnes (born May 30, 1992) is an American professional basketball player for the Dallas Mavericks of the National Basketball Association (NBA). He played college basketball for the North Carolina Tar Heels before being selected by the Golden State Warriors in the first round of the 2012 NBA draft with the seventh overall pick. Barnes won an NBA championship with the Warriors in 2015. [END] 
[1]  [DOC] The 21 Irrefutable Laws of Leadership: Follow Them and People Will Follow You is a 1998 book written by John C. Maxwell and published by Thomas Nelson. It is one of several books by Maxwell on the subject of leadership. It is the book for which he is best-known. The book was listed on "The New York Times" Best Seller list in April 1999 after marketing company ResultSource manipulated the list by making it look like copies of "The 21 Irrefutable Laws of Leadership" had been purchased by thousands of individuals when, in actuality, ResultSource had simply made a bulk order of the book. The book had sold more than one million copies by 2015. Christian businessperson John Faulkner was inspired to found Christian business magazine "TwoTen" when he read "The 21 Irrefutable Laws of Leadership". Professional basketball player Harrison Barnes read and spoke positively of the book. Annie Grevers of "Swimming World Magazine" wrote of Maxwell's book, "it's cheesy, but ... it did me some good". Columnist Michael Hiltzik of the "Los Angeles Times" criticized Maxwell for including in the book "the insidious subtext ... that externalities have nothing to do with your failure", an assertion that Hiltzik argues research studies have demonstrated to be false. [END]  
Answer: Harrison Barnes
Harrison Barnes