There is a lot of free material on the FAA web site, and a lot of books, that will help you in your journey. Most of them are dry. Like Sahara dry. Will put you to sleep dry.
For someone who's just starting out, that sort of thing does not lead to good retention, meaning you'll have to slog through it AGAIN after a while to get more to stick. I greatly prefer the treatment by Rod Machado, with lots of humor and illustration that will not only keep you awake, it'll help you learn.
https://www.aircraftspruce.com/catalog/bvpages/rodmachado_13-24374.php
Until you get in the cockpit, there's still going to be a limited amount of understanding and retention, so I would not recommend burning yourself out trying to read every ground school/how to book ever made. Consume some things that are more about the romance of flying, and remember why you want to do it! That's a much better way to keep motivated.
Flight of Passage by Rinker Buck,
Flying Carpet: The Soul of an Airplane by Greg Brown,
Fate is the Hunter by Ernie Gann, and if you finish all of those there's probably lots of good stuff in most of the stuff
here,
here, and
here. I also greatly enjoyed Jimmy Doolittle's autobiography,
I Could Never Be So Lucky Again.
Tangentially related, if you're interested in WWII aviation,
Serenade to the Big Bird by Bert Stiles is unlike any other such book I've ever read, and of course
Unbroken.
You should also check out the documentary
One Six Right. It's got lots of fantastic flying and stories in it.