Decent article, though it glossed over the greatness of much of his work, not just the couple most famous ones. I grew up loving books like Have Space SuitWill Travel, Tunnel in the Sky (read and re-read until it fell apart), The Door into Summer and one of my favorites (go ahead and snicker): Podkayne of Mars.
Nobody wrote them like Heinlein did. Even when the story was not his best (Time Enough for Love comes to mind), the writing kept you riveted.
It would have been neat if my high school had possessed an armory like Patrick Henry High did in Tunnel In The Sky...
I started the boys with Have Space Suit -- Will Travel. And I started the girls on The Star Beast. Those who are old enough to read are now voracious recreational readers -- especially of science fiction.
I read and enjoyed almost everything Heinlein wrote, but, in his latter years he "ran off the rails" toward free sex and pedophilia with his last few novels...