[leoc]

If you're already fairly comfortable with computer programming, The Little Schemer would be almost perfect for this. https://mitpress.mit.edu/9780262560993/the-little-schemer/ It would be well worth reading some of the sequel The Seasoned Schemer https://mitpress.mit.edu/9780262561006/the-seasoned-schemer/ too. In theory TLS should be accessible to anyone, but I've seen a couple of non-programmers bounce off it pretty hard. In those cases HtDP (as mentioned by m-a-t-t-i https://news.ycombinator.com/item?id=45073156 ) should hopefully be slow enough to be accessible.

[AnonC]

Thank you very much for these recommendations. I am very familiar with computer programming and will check these out.