When I was younger, I remember reading (also having read to me) all fourteen of L. Frank Baum's Oz books. One thing that always confused me was that the maps of Oz that showed a compass rose had east and west switched. I thought maybe it was a mistake or there was something magical about it, but I didn't know.
And then, years ago, I read Robert Heinlein's The Number of the Beast and the characters in the book discuss this as an issue as well. I have heard that Heinlein also wrote Oz stories, so I would think he would have known if there was an explanation for that, but he never gave one.
I also remember that the books that showed Oz and the magical lands around it, in the middle of the Nonestic Ocean had a compass rose with the correct directions.
Is there any explanation for this? Is it magical? Did Baum have issues with directions? I've wondered about this on and off for decades now.