In his 2003 book, "Lessons for Dylan" (PublicAffairs), Good Morning America's Joel Siegel passes on life lessons to his son, Dylan, who was born just as Siegel began his battle with cancer.
Siegel was 54 when he was diagnosed with colon cancer. Only two weeks later, he found he was going to be a father for the first time. "I knew my father pretty well; I was almost 40 when he died," Siegel said. "I faced the very real possibility that Dylan would never know me unless I wrote a book."