Behold, some books. (actually part of my history shelf)
Please note that this post contains Bookshop affiliate links.
In no particular order, except maybe the order I'd read them if I were going to read straight through, here are some books to help you get a further handle on Charlotte Mason's philosophy and methods:
Charlotte Mason's six-volume series.
You can buy them fairly cheaply in hard copies, but they are also freely available, in several versions, on the Ambleside Online website. I generally recommend starting with her Volume 6: Towards a Philosophy of Education, because it represents the cumulative articulation of a life's work, and walks through her whole philosophy in a complete and fully realized way. Its framework consists of the twenty Principles we've been reading through and discussing here.
But read them all!
Karen Glass's Mind to Mind is a lightly edited version of Volume 6, incidentally, and if you're looking to buy a hard copy, I'd suggest that.
General how-to and getting-started books:
The Living Page, Laurie Bestvater (on keeping notebooks)
For learning more about narration, which is so central to a Charlotte Mason education: Karen Glass's Know and Tell is a must.
Also of interest:
For an idea of what living books look like, you're welcome to peruse the Home Education Resources section of my Bookshop. Many of the books in this section are part of the Mater Amabilis curriculum, but many others are just lovely selections, mostly older books, that exemplify the qualities of a living book. Parents looking to set up a customized Charlotte Mason curriculum for their children might find some good ideas here (and I can help you with that process as well).