There need to be more efforts at more books which take advantage of technology in interesting ways and which are freely distributable for the public good.

Two notable efforts:

- https://mathcs.clarku.edu/~djoyce/java/elements/elements.htm...

- https://www.motionmountain.net/

as well as arguably the influential: https://howtothink.readthedocs.io/en/latest/

of course, in addition to crowd-sourced efforts at more traditional media:

- https://www.gutenberg.org/

- https://librivox.org/

- https://standardebooks.org/

- https://www.wikibooks.org/

as well as an entire category of Computer Science texts/programs published as books:

- http://literateprogramming.com/

- https://www.goodreads.com/review/list/21394355-william-adams...