I'm working my way through all of Heinlein's juveniles at the moment.
They're all familiar old friends to me.
So far I've read....
Farmer in the Sky and Star Man Jones
I started on Between Planets this morning.
Next on the list is......
Podkayne of Mars
Rocketship Galileo
Space Family Stone
Citizen of the Galaxy
The Star Beast
Star Ship Troopers
The Day after Tomorrow
etc etc etc
Oh, who am I kidding, I'll end up reading all his work over the holidays.

I do love a good space opera.