Though this ain't strictly a programming concept, Unicodes would be a nice addition. https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-softwa

Though this ain't strictly a programming concept, Unicodes would be a nice addition. https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/ https://www.joelonsoftware.com/2003/10/08/the-absolute-minim...