Here's where the Goodreads scoring system comes into play. This is not a particularly good, deep, or meaningful book but I thoroughly enjoyed reading it. It is basically Mary Sue tripe that I devoured in a single sitting and signed out its sequel. It stars "hypercompetent girl" who goes on massive exposition binges. There's no character development, no nuance, no realistic challenges, just wish fulfillment. 
 Instead, Earth Girl offers paper thin jealous and prejudiced "antagonists" who attack her for having a "disability". She's always right. Her "flaws" are her stubbornness and her bad temper which somehow don't manage to alienate anyone and win her honor and distinction. Everyone who matters comes to love her in the end, offering her rewards and honors far above her efforts. She even manages to remain chaste and pure as she and her "boyfriend" celebrate being "highly moral contract people" (it's explained in the book, no lovin' without commitment.) He's from a society that places an emphasis on traditional behavior and is shocked, utterly *shocked*, when she uses words like "butt". 
 I can't tell whether this book was written ironically or not but just taken as is, with no background or cynicism, it's a hoot. 
 If you ever want to see Mary Sue pushed to its practical limits but done well, this is the book for you. I'm not sure if this book should be burned or given all the awards but if you're looking for something to while away an afternoon (it's short) or safely give to a teen, this is it.