Christopher Nuttall reviews Robert A. Heinlein’s Podkayne Of Mars. He goes into the story behind the story, where the original publisher required that Heinlein revise the ending. Baen later included both endings in its reprint. (Do read the review: There’s a lot more to it.)
I’ve read most of Heinlein’s works, and probably all of his short stories. I know this book to be in one of the few gaps. I will need to revisit Heinlein at some point. After reading this review, I expect to start with this one.