Here is a (nonexhaustive) list of my favourite websites, broadly organized by topic.
My other typography bible is Robert Bringhurst’s book, The Elements of Typographic Style (1992), but that’s not a website so it doesn’t get an entry here.
My favourite article that I have read of his so far is the one about bicycles. He begins with the very basics of Newton’s laws of motion, and proceeds to apply these fundamental concepts to each of the major consituent parts of a bike. An impressive mixture of two- and three-dimensional interactive sandboxes helps to keep the explanations exciting and lucid.
His work is as delightful as it is informative!
Grant explains math concepts – often quite complicated ones – using fluid video animations and motivated explanations (a term he coined, referring to the act of stepping through the context and intuition behind a mathematical result – say, a proof – in such a way that the listener could have, in theory, come up with said result themselves).
For example, his most recent video at the time of writing (2026 Sept. 21), to do with a devilishly tricky International Math Olympiad problem, is just insanely good. He (along with collaborators who assisted with visuals) provides a beautiful walkthrough of the solution, while painstakingly motivating each leap in reasoning. In doing so, he instills in the viewer general methods of thinking about difficult problems. Planning to rewatch it soon, probably multiple times.
Although in no way a substitute for professional help in cases where professional help is necessary or beneficial, his discussions are extremely enlightening when consumed mindfully and combined with careful introspection and journalling.