http://d7w3gz2atjwmvxtjr32j4rwskgro7vsyxvzt4l2bivcrtbos3drkjcqd.onion/how-monero-works
Monero's defenses (larger rings, better decoy selection, and soon FCMP++) keep raising the bar, but no system is magic. None of this undermines the core: by default, the sender, recipient, and value of a payment stay private. Knowing the limits is how you use it well.