What should I read as an intro politics, government, and general world events?

I’ll be a senior in High School, next year, and I’m taking a course in both U. S. Government and Economics.
However, I feel I’m really behind my classmates in knowing about the workings of the world, politics-wise.
Are there any good books you can recommend as an introduction to government and politics that I can read before school begins?
Something that assumes the reader knows little to nothing, I mean. . .
Thanks !
Sorry, I meant “as an intro TO politics”.