Susan Wise Bauer is the author of several major volumes on the history of the world. She has also written books to help adults get the classical education that they want without the college debt that is so often assumed to be needed. She has also written what some would call the definitive one volume book on home schooling and the classical model.
Here’s a link to all of her books: http://www.susanwisebauer.com/books/
Reading half of them would do us all some great good.