Thoughts on Sophie's World so far

I've been rereading Sophie's World, Jostien Gaarde. So far I really like it!!

Basically, it's a historical fiction book about the history of philosophy, it follows a girl name Sophie. She was just a normal 14 year old until she received a letter in the mail.. and it spirals from there! She gets letters daily, each with a new lesson on a philosophy or philosopher.

The story isn't even a story, it makes you think and want to read more. Very very big fan!!!!!