didn’t know much about YouTube star John Green until a few months
ago when my kids told me about his best-selling novel The Fault in Our
Stars. It’s a deeply moving and, at times, surprisingly funny story
about two teenagers with cancer who fall in love.
Later, I watched some of John’s video blogs and Crash Courses and
was really impressed. People my age may not be John’s target
audience, but I could quickly understand why millions of teens flock
to his books and videos. One night I sat down to look at one of his
online courses and then suddenly realized more than an hour had gone
by as I watched John tackle complex ideas in history, biology and
What impresses me most about John is his courage to ask tough
questions—about cancer, the conflict in the Central African
Republic, even how giraffes have sex—and then answer them in a way
that is entertaining while at the same time super informative.