You've probably stumbled upon this site because you've seen my notes here. I'm glad you're here!

But you may wonder why I'm not selling them as many others do. Well, my reason is simple – free knowledge would help more people. Sometimes, knowledge behind a paywall could purely be a genial manifestation of greed.

If you wish, you could blame idealism or altruism, but do take a look at my introduction on the overview page.

Enjoy your sightseeing!