The Great Encyclopedia of Anonymity
You will need a Tor Browser!
The Hitchhiker's Guide is a service on the TOR network that is a very serious encyclopedia on anonymity, literally in all aspects, not only on the web. Such moments as: network operation (DNS, IP addresses and others), hardware identifiers, telemetry and OS, cryptocurrency transactions and a bunch of other sections are described in detail. Knowledge of English or the use of an interpreter is required. It is possible to download in PDF format.