WordPress categories and tags can be used in many different ways, or not at all. I like to think of categories as headings in a table of contents at the front of a book, and tags as forming an index at the back.
The Art & Design category groups together interesting articles and links about AI, animation, art, design, drawing, graphic design, painting, photography, sculpture and typography, amongst others.
Data & Records is a category for articles about data visualisation, charts and spreadsheets, as well as data protection, privacy, GDPR and records management, that kind of thing.
The Education & Standards category groups together articles I’ve found about children, schools and universities, and exams and standards, and so on.
I use the Media & Society category to scoop up topics like books, music and movies, politics and science, philosophy and language, and the world of work and productivity, and so forth.
The Technology & the Web category is the home for articles about the internet and email, phones and social media, and the history of technology and computing et cetera.