Always strive to learn something useful. --Sophocles

OpenStax is a part of Rice University developing free books for K-12 and university application. The books are mostly geared towards 101-level coursework and don't cover a huge number of subjects, for example, only two computer science titles are listed. One is an Introduction to Python, I downloaded it (400 pages) and looked over the TOC and I approve of the structure of instruction. I'd like to see things covered more deeply, but for a 101 book, I think it's quite adequate. I'll take a look at the astronomy book next (1100 pages), it's been a good twenty years since I took an intro on that class.

Still, it's a beginning!

The books are free to download (PDF) or access online and can be used by instructors in classroom settings as long as proper copyright attribution is maintained.

https://openstax.org/

A HISTORY OF WHAT COMES NEXT
(A Take Them to the Stars Novel)
by Sylvain Neuvel

It's only available until 11:59pm ET November 5, so act fast or pay $ for it.

From the web page:
For generations, Mia’s family has shaped human history to push them to the stars. A HISTORY OF WHAT COMES NEXT is the secret history of the origins of the space programs in the USA and USSR, abounding with spies, conspiracies, and a mysterious Tracker who will not allow humanity to escape the planet.

Always run, never fight. Preserve the knowledge. Survive at all costs. Take them to the stars.

Book 2 is coming out at the end of March. While History will not be the next book on my reading list, it will get put into the queue.

You do have to register for the book club mailing list, and the download is a DRM-free epub or Kindle version.

https://ebookclub.tor.com/

Featuring The Lamb Will Slaughter The Lion by Margaret Killjoy, Passing Strange by Ellen Klages, A Taste of Honey by Kai Ashante Wilson, and The Black Tides of Heaven by JY Yang. All are in Kindle and epub format, and are available for the next three days.

You do have to sign up for the Tor ebook club, they send out a free book offer every month.