I ordered a year of "weekly reader" for my kid. It was due to come when school starts, but it hasn't started yet. I hope it has a good overview of the world for my little planetary native. There's also a Time magazine for kids but I went with weekly reader. You can't have everything. I have a very dry book called Everyday Geography that my dad gave me that size and shape and latitude and longitude of map stuff. My sons asks for me to read it because he thinks the names of the places are funny. I don't get it. I just read it normal. I think I read Peter rabbit much better, but, whatever.
Mm. Almost forgot. I have a book called one nation fifty states by Imagene Forte. I bought a pack of tracing paper and he's tracing and coloring each state with a flag and a state bird on it. I'm going to put these in a 1" binder so when he starts studying American history he can file his stuff under the right states. I'm going to have to put them in page protectors with a blank sheet behind them because they're tracing paper.