The Little House series by Laura Ingalls Wilder
I loved my mother's copies to pieces. One of the best Christmas presents I've ever received was when Mom gave me my own set of the series.
Little House started it all. It eventually led to L.M. Montgomery, which led to Austen, which led to being an English major, which "ended" with a Period-Drama-in-books-and-movies-loving librarian.
So, today I found this article hilarious.
Some of it is ridiculous. But much of it is very true. :-)